CN219745015U - Vertical sand mill rotor without jigger - Google Patents
Vertical sand mill rotor without jigger Download PDFInfo
- Publication number
- CN219745015U CN219745015U CN202320950373.XU CN202320950373U CN219745015U CN 219745015 U CN219745015 U CN 219745015U CN 202320950373 U CN202320950373 U CN 202320950373U CN 219745015 U CN219745015 U CN 219745015U
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- CN
- China
- Prior art keywords
- rotor
- sand mill
- cylinder
- jigger
- utility
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000004576 sand Substances 0.000 title claims abstract description 15
- 241001584775 Tunga penetrans Species 0.000 title claims description 7
- 238000007599 discharging Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 description 8
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Landscapes
- Crushing And Grinding (AREA)
Abstract
The utility model discloses a vertical sand mill rotor without turning, which comprises an upper rotor and a lower rotor, wherein the lower rotor is a totally-enclosed cylinder, the outer surface of the lower rotor is uniformly provided with bar pins, the outer surface of the lower rotor is provided with spiral discharge grooves, and the bar pins are arranged at positions among the spiral discharge grooves; according to the utility model, the rotor is formed into a fully-closed cylinder, and the rod pin and the spiral discharge groove are arranged, so that the resistance of the rotor after starting is reduced, and compared with the prior art, the rotor can be directly started without turning.
Description
Technical Field
The utility model relates to the technical field of grinding equipment, in particular to a vertical sand mill rotor without turning.
Background
Under the action of motor, the vertical main shaft of vertical sand mill rotates together with the rotor with rod tip on it to transfer kinetic energy to grinding medium and material in the grinding cavity. The materials are crushed to the required fineness under the action of the forces such as mutual collision and friction among grinding media. The effective grinding area of the vertical sand mill is concentrated compared with the horizontal sand mill, the grinding efficiency is higher than that of the horizontal sand mill, and the existing vertical sand mill has the defects that: when the vertical sand mill grinds the interior material of cavity and not in time clear up and shut down, need the jigger side to start when starting again, can cause some unnecessary losses.
Jiggering occurs because: the lower end face of the rotor is open, a plurality of kidney-shaped discharging holes are formed in the periphery of the wall of the rotor, the periphery of the inner wall and the periphery of the outer wall of the rotor can be buried by grinding media and materials, and when the rotor is restarted, the motor is easily damaged due to high instantaneous current due to high resistance. In practice, the jigger is usually started before starting: the material and medium around the inner and outer walls of the rotor are discharged from the grinding cavity to be started after the resistance is reduced by manually rotating the rotor.
Disclosure of Invention
The technical problems to be solved by the utility model are as follows: the problem that the periphery of the inner wall and the outer wall of an existing vertical sand mill rotor can be buried by grinding media and materials and needs turning for starting is solved.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
a vertical sand mill rotor without turning comprises an upper rotor and a lower rotor, wherein the lower rotor is a totally-enclosed cylinder, and bar pins are uniformly arranged on the outer surface of the lower rotor;
the outer surface of the lower rotor is provided with spiral discharge grooves, and the bar pins are arranged at positions between the spiral discharge grooves.
Further, the upper rotor is a cylinder with kidney-shaped discharge holes at the periphery, and a centrifugal separator can be arranged in the cylinder.
Working principle and beneficial effect: the rotor is formed into a fully-closed cylinder, and the rod pin and the spiral discharge groove are arranged, so that the resistance of the rotor after starting is reduced, and compared with the prior art, the rotor can be directly started without turning.
Drawings
FIG. 1 is a schematic view of a partial cross-sectional structure of the present utility model.
In the figure: 1. an upper rotor; 2. a lower rotor; 3. a bar pin; 4. a spiral discharge chute; 5. waist-shaped discharge hole.
Detailed Description
The utility model will be better understood from the following examples.
The structures, proportions, sizes, etc. shown in the drawings are shown only in connection with the disclosure of the present utility model, and are not intended to limit the scope of the utility model, which is defined by the claims, but rather by the terms of modification, variation of proportions, or adjustment of sizes, without affecting the efficacy or achievement of the present utility model, should be understood as falling within the scope of the present utility model. Also, the terms such as "upper", "lower", "front", "rear", "middle", and the like are used herein for descriptive purposes only and are not intended to limit the scope of the utility model for which the utility model may be practiced or for which the relative relationships may be altered or modified without materially altering the technical context.
As shown in fig. 1:
examples:
a vertical sand mill rotor without turning comprises an upper rotor 1 and a lower rotor 2, wherein the lower rotor 2 is a totally-enclosed cylinder, the outer surface of the lower rotor 2 is uniformly provided with bar pins 3, the outer surface of the lower rotor 2 is changed into a totally-enclosed cylinder, and bar pins are uniformly distributed on the outer surface of the totally-enclosed cylinder according to a certain rule, so that only the periphery of the outer surface of the lower rotor 2 is buried, and the resistance starting is reduced;
the outer surface of the lower rotor 2 is provided with spiral discharge grooves 4, a rod pin 3 is arranged at the position between the spiral discharge grooves 4, a left-to-right spiral discharge groove 4 is turned according to a certain angle, when the sand mill is restarted, the rotor is rotated right under the action of a motor, the part of the rotor in the grinding cavity, which is buried by materials and media, is conveyed upwards by the discharge grooves, the surrounding pressure of the rotor is reduced and rotated without using a jigger for starting, the upper rotor 1 is a cylinder with waist-shaped discharge holes 5 at the periphery, a centrifugal separator can be arranged in the cylinder, the upper rotor 1 is changed into a cylinder with waist-shaped discharge holes 5 at the periphery, and the centrifugal separator can be arranged in the cylinder to separate grinding media and materials, so that starting resistance is reduced.
Claims (2)
1. The utility model provides a vertical sand mill rotor that need not jigger, includes upper portion rotor (1) and lower part rotor (2), its characterized in that: the lower rotor (2) is a totally-enclosed cylinder, and the outer surface of the lower rotor is uniformly provided with bar pins (3);
the outer surface of the lower rotor (2) is provided with spiral discharge grooves (4), and the rod pins (3) are arranged at positions among the spiral discharge grooves (4).
2. A jigger free vertical sander rotor as set forth in claim 1, wherein: the upper rotor (1) is a cylinder with waist-shaped discharging holes (5) at the periphery, and a centrifugal separator can be arranged in the cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320950373.XU CN219745015U (en) | 2023-04-25 | 2023-04-25 | Vertical sand mill rotor without jigger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320950373.XU CN219745015U (en) | 2023-04-25 | 2023-04-25 | Vertical sand mill rotor without jigger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219745015U true CN219745015U (en) | 2023-09-26 |
Family
ID=88077047
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320950373.XU Active CN219745015U (en) | 2023-04-25 | 2023-04-25 | Vertical sand mill rotor without jigger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219745015U (en) |
-
2023
- 2023-04-25 CN CN202320950373.XU patent/CN219745015U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |