Grinding device for light burning powder production
By designing a grinding device with a grinding ring structure with gradually narrowing the gap, the problem of difficulty in smooth grinding when the raw material particles are of different sizes or clumping is solved, and an efficient grinding process and long-life grinding parts are achieved.
Patent Information
- Application Number
- CN202420748410.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-12
- Publication Date
- 2025-03-21
- Estimated Expiration
- 2034-04-12
AI Technical Summary
In the case where the particle size of the treatment raw material is different or agglomerated, it is difficult to ensure that the raw material enters the gap smoothly for grinding, and the local pressure in the grinding part is too high, which affects the grinding quality.
A grinding device including a shell, an upper ring body, a lower ring body and a grinding ring body is designed. The gap between the side wall of the grinding ring body and the side wall of the grinding ring mouth gradually shrinks from top to bottom, increasing the size of the coarse grinding area, and preventing excessive local pressure from being too large by first coarse grinding and then fine grinding.
The raw material particles of different sizes can be smoothly entered into the grinding ring for coarse grinding, avoiding excessive local pressure in the finishing part, and improving the grinding efficiency and service life of the finishing parts.
Smart Images
Figure CN222642186U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of grinding devices, in particular to a grinding device used for light-burned powder production. Background Art
[0002] Magnesite calcined at 750-1100℃ is called "light burning". Its product is called light-burned magnesium powder, or light-burned powder for short. Light-burned powder is mainly used to make cementitious materials, heat-insulating and sound-insulating building materials, and can also be used as ceramic raw materials. Light-burned powder needs to be ground during production, so a grinding device is needed.
[0003] However, when the particles in the raw material are of different sizes or agglomerated, the gap spacing between the two grinding parts of the existing grinding device is consistent, resulting in the raw material not being able to enter the gap smoothly. It may also cause excessive local pressure in the grinding part, increasing the local load of the grinding part and affecting the grinding quality. Utility Model Content
[0004] In view of the deficiencies of the prior art, the utility model provides a grinding device for producing light-burned powder to solve the problems raised in the above-mentioned background technology.
[0005] To achieve the above objectives, the utility model is implemented through the following technical solutions: a grinding device for light-burned powder production, comprising a shell, an upper ring body and a lower ring body are fixedly arranged in the shell, an intermediate body placed in the inner ring of the upper ring body is fixedly arranged on the lower ring body through a connecting plate, a grinding ring opening is formed between the intermediate body and the inner ring of the upper ring body, a rotating shaft is rotatably arranged in the shell, the rotating shaft passes through the intermediate body and the lower ring body and is rotatably connected to the bottom of the shell, a grinding ring body is fixedly arranged on the rotating shaft through a connecting rod, the grinding ring body is placed in the grinding ring opening, a plurality of first grinding blocks are arranged on both side walls of the grinding ring body and on the inner wall of the grinding ring opening, the gap between the side wall of the grinding ring body and the side wall of the grinding ring opening gradually decreases from top to bottom, a fine grinding assembly is arranged below the lower ring body, a discharge port is opened on the shell on one side below the fine grinding assembly, and a feed port is arranged on one side above the shell.
[0006] Preferably, the fine grinding assembly comprises a grinding disc, which is fixedly connected to the rotating shaft below the lower ring body, and a plurality of second grinding blocks are provided on the upper surface of the grinding disc and the lower surface of the lower ring body.
[0007] Preferably, a scraper is fixedly provided on the side wall of the grinding disc.
[0008] Preferably, a gearbox is fixedly arranged on the shell, the upper end of the rotating shaft passes through the shell and is connected to the output end of the gearbox, and the input end of the gearbox is connected to a motor.
[0009] Preferably, the upper surface of the lower ring body is funnel-shaped.
[0010] Beneficial Effects
[0011] The utility model provides a grinding device for light-burned powder production, which has the following beneficial effects: by gradually reducing the gap between the side wall of the grinding ring body and the side wall of the grinding ring opening from top to bottom, raw material particles of different sizes can smoothly enter the grinding ring opening for coarse grinding, and by adopting the method of rough grinding first and then fine grinding, excessive local pressure in the fine grinding part is prevented, thereby improving the service life of the fine grinding parts; by placing the annular grinding ring body in the grinding ring opening, the size of the coarse grinding area is increased, thereby improving the coarse grinding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 This is the main internal structure diagram of the utility model.
[0013] In the figure: 1. shell; 2. rotating shaft; 3. upper ring body; 4. lower ring body; 5. connecting plate; 6. intermediate body; 7. grinding ring mouth; 8. connecting rod; 9. grinding ring body; 10. first grinding block; 11. grinding disc; 12. second grinding block; 13. discharge port; 14. feed port; 15. gearbox; 16. motor; 17. scraper. DETAILED DESCRIPTION
[0014] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.
[0015] See also Figure 1 The utility model provides a technical solution: a grinding device for light-burned powder production, comprising a shell 1, an upper ring body 3 and a lower ring body 4 are fixedly arranged in the shell 1, an intermediate body 6 placed in the inner ring of the upper ring body 3 is fixedly arranged on the lower ring body 4 through a connecting plate 5, a grinding ring opening 7 is formed between the intermediate body 6 and the inner ring of the upper ring body 3, a rotating shaft 2 is rotatably arranged in the shell 1, the rotating shaft 2 passes through the intermediate body 6 and the lower ring body 4 and is rotatably connected to the bottom of the shell 1, a grinding ring body 9 is fixedly arranged on the rotating shaft 2 through a connecting rod 8, the grinding ring body 9 is placed in the grinding ring opening 7, and the two side walls of the grinding ring body 9 are A plurality of first grinding blocks 10 are provided on the inner wall surface of the grinding ring mouth 7, and the gap between the side wall of the grinding ring body 9 and the side wall of the grinding ring mouth 7 gradually decreases from top to bottom, so that raw materials with different particle sizes can smoothly enter the grinding ring mouth 7, and the raw materials with small particles will flow downward by their own weight, and the raw materials with large particles will be coarsely ground by the grinding ring body 9 and the first grinding blocks 10 on the upper ring body 3. A fine grinding assembly is provided under the lower ring body 4 to form a fine grinding part for fine grinding the raw materials, and a discharge port 13 is provided on the shell 1 on one side below the fine grinding assembly, and a feed port 14 is provided on one side above the shell 1.
[0016] As an embodiment of the utility model, the fine grinding assembly includes a grinding disc 11, which is fixedly connected to the rotating shaft 2 below the lower ring body 4. A plurality of second grinding blocks 12 are provided on the upper surface of the grinding disc 11 and the lower surface of the lower ring body 4. The raw material is finely ground by the second grinding blocks 12 on the lower ring body 4 and the grinding disc 11.
[0017] As an embodiment of the present invention, a scraper 17 is fixedly provided on the side wall of the grinding disc 11, and the finely ground raw materials can be scraped toward the discharge port 13 by the scraper to facilitate discharge.
[0018] As an embodiment of the utility model, a gearbox 15 is fixedly arranged on the housing 1 , the upper end of the rotating shaft 2 passes through the housing 1 and is connected to the output end of the gearbox 15 , and the input end of the gearbox 15 is connected to the motor 16 .
[0019] As an embodiment of the present invention, the upper surface of the lower ring body 4 is funnel-shaped, so as to facilitate the raw materials after rough grinding to flow to the fine grinding part.
[0020] The working principle and use process of the utility model are as follows: when in use, the motor 16 is connected to the power supply and the control switch through the wire, and the raw material is poured into the shell 1 through the feed port 14. The rotating shaft 2 can be rotated by starting the motor 16. When the rotating shaft 2 rotates, the grinding ring body 9 and the grinding disk 11 rotate accordingly. Since the gap between the side wall of the grinding ring body 9 and the side wall of the grinding ring opening 7 gradually decreases from top to bottom, it is ensured that raw material particles of different sizes can smoothly enter the grinding ring opening 7. Raw materials with small particles will flow downward by their own weight, and raw materials with large particles will be coarsely ground by the grinding ring body 9 and the first grinding block 10 on the upper ring body 3. The raw materials after coarse grinding will enter the gap between the lower ring body 4 and the grinding disk 11 under the action of gravity, so as to realize fine grinding of the raw materials and make the raw materials meet the production requirements. Finally, the finely ground raw materials can be scraped to the discharge port 13 by the scraper 17 to complete the grinding.
[0021] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A grinding device for producing light-burned powder, characterized in that: The invention comprises a shell (1), wherein an upper ring body (3) and a lower ring body (4) are fixedly arranged in the shell (1), an intermediate body (6) placed in the inner ring of the upper ring body (3) is fixedly arranged on the lower ring body (4) via a connecting plate (5), a grinding ring opening (7) is formed between the intermediate body (6) and the inner ring of the upper ring body (3), a rotating shaft (2) is rotatably arranged in the shell (1), the rotating shaft (2) passes through the intermediate body (6) and the lower ring body (4) and is rotatably connected to the bottom of the shell (1), and the rotating shaft (2) is connected to the lower ring body (4) via a connecting rod (8). ) is fixedly provided with a grinding ring body (9), the grinding ring body (9) is placed in the grinding ring opening (7), a plurality of first grinding blocks (10) are provided on the side walls of the grinding ring body (9) and the inner wall of the grinding ring opening (7), the gap between the side wall of the grinding ring body (9) and the side wall of the grinding ring opening (7) gradually decreases from top to bottom, a fine grinding component is provided below the lower ring body (4), a discharge port (13) is provided on the shell (1) on the side below the fine grinding component, and a feed port (14) is provided on the upper side of the shell (1).
2. A grinding device for producing light-burned powder according to claim 1, characterized in that: The fine grinding assembly comprises a grinding disc (11), wherein the grinding disc (11) is fixedly connected to the rotating shaft (2) below the lower ring body (4), and a plurality of second grinding blocks (12) are provided on the upper surface of the grinding disc (11) and the lower surface of the lower ring body (4).
3. A grinding device for producing light-burned powder according to claim 2, characterized in that: A scraper (17) is fixedly arranged on the side wall of the grinding disc (11).
4. A grinding device for producing light-burned powder according to claim 1, characterized in that: A gearbox (15) is fixedly arranged on the housing (1); the upper end of the rotating shaft (2) passes through the housing (1) and is connected to the output end of the gearbox (15); and the input end of the gearbox (15) is connected to a motor (16).
5. A grinding device for producing light-burned powder according to claim 1, characterized in that: The upper surface of the lower ring body (4) is funnel-shaped.