Crushing device for alumina micro powder production

Abstract

The utility model relates to a crushing device for alumina micro powder production, which comprises a crushing mechanism, a support is fixedly mounted outside the crushing mechanism, a driving mechanism is arranged outside the crushing mechanism, a discharging mechanism is arranged on the left side of the support, the discharging mechanism comprises a discharging bin, the discharging bin is fixedly mounted on the left side of the support, and the discharging bin is arranged on the left side of the support. The top of the discharging bin communicates with a discharging pipeline, and a second rotating shaft with one end penetrating and extending to the right side of the discharging bin is rotationally installed on the left side of the inner wall of the discharging bin. According to the crushing device for alumina micro powder production, through the arrangement of the discharging mechanism, the crushing mechanism and the driving mechanism, crushed alumina micro powder can be subjected to secondary filtration, so that the uniformity of powder crushing and discharging is improved as much as possible, and the crushing quality is improved; and through the arrangement of the third transmission assembly and the driving mechanism, the second rotating shaft, the spiral feeding shaft and the driving shaft share the same driving source, and energy conservation and emission reduction are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of aluminum oxide micropowder production, in particular to a pulverizing device for aluminum oxide micropowder production. Background Art

[0002] Alumina micropowder is a white, odorless, powdery material. It is a high-purity crystal formed by high-temperature melting and recrystallization of high-quality raw materials in an electric arc furnace. It is white in color and has high chemical stability and hardness. Therefore, it is widely used in many fields, including ceramics, electronics, catalysts and fillers. In the production process of alumina micropowder, alumina micropowder with too many impurities will be purified by acid washing and water washing, and then further dried and crushed. Among them, crushing is an important link in the production process of alumina micropowder.

[0003] In the process of realizing the present application, the inventors found that there are at least the following problems in the technology: the existing alumina micropowder production mostly uses a crushing drum for crushing, but after crushing, it mostly uses a mesh plate for screening. During the screening process, materials smaller than the mesh holes of the mesh plate will be screened out, resulting in poor powder uniformity. When a screen with finer mesh holes is used, the powder is likely to stick to the surface of the screen, which is more prone to clogging and requires frequent cleaning. Therefore, a crushing device for alumina micropowder production is proposed to solve the above problems. Utility Model Content

[0004] In view of the shortcomings of the prior art, the utility model provides a pulverizing device for producing alumina micropowder, which has the advantages of multi-stage screening, etc., and solves the problem that the existing pulverizing device has poor screening effect on alumina micropowder.

[0005] To achieve the above object, the utility model provides the following technical solution: a pulverizing device for producing alumina micropowder, comprising a pulverizing mechanism, a bracket is fixedly installed outside the pulverizing mechanism, a driving mechanism is arranged outside the pulverizing mechanism, and a discharging mechanism is arranged on the left side of the bracket;

[0006] The discharging mechanism includes a discharging bin, which is fixedly mounted on the left side of the bracket, and the top of the discharging bin is connected to a discharge pipe. A second rotating shaft with one end penetrating through and extending to the right side of the discharging bin is rotatably mounted on the left side of the inner wall of the discharging bin, a third transmission assembly is arranged on the outside of the second rotating shaft, a discharging fan blade group is fixedly mounted on the outside of the second rotating shaft and located inside the discharging bin, and a cleaning door is embedded on the right side of the discharging bin.

[0007] Furthermore, the crushing mechanism includes a crushing bin, which is fixedly mounted on the top of the bracket, the top of the crushing bin is connected to a feed hopper, the bottom of the crushing bin is fixedly mounted with a transport bin, a spiral feeding shaft with one end penetrating through and extending to the inside of the transport bin is rotatably mounted on the right side of the transport bin, a driving shaft with one end penetrating through and extending to the inside of the crushing bin is rotatably mounted on the right side of the crushing bin, a crushing knife group is fixedly mounted outside the driving shaft and inside the crushing bin, and a filter screen is fixedly mounted inside the crushing bin and below the crushing knife group.

[0008] Furthermore, the driving mechanism includes a reduction motor, which is fixedly mounted on the top rear side of the bracket, and the reduction motor is located on the rear side of the crushing bin. A first rotating shaft is fixedly mounted on the output end of the reduction motor, and a first transmission component with one end arranged on the outside of the driving shaft is arranged on the outside of the first rotating shaft, and a second transmission component with one end arranged on the outside of the driving shaft is arranged on the outside of the spiral feeding shaft.

[0009] Furthermore, the second rotating shaft, the spiral feeding shaft and the driving shaft are all rotatably connected to the bracket through bearings, the crushing bin and the transport bottom bin are fixedly installed inside the bracket, and the filter screen is fixedly connected to the crushing bin through bolts.

[0010] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0011] 1. The pulverizing device for producing alumina micropowder can perform secondary filtration on the pulverized alumina micropowder through the arrangement of the discharging mechanism, the pulverizing mechanism and the driving mechanism, thereby maximizing the uniformity of the powder pulverization and discharging and improving the pulverization quality.

[0012] 2. The pulverizing device for producing alumina micropowder uses the third transmission component and the driving mechanism so that the second rotating shaft, the spiral feeding shaft and the driving shaft share the same driving source, thereby saving energy and reducing emissions. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 This is a rear view structural diagram of the utility model;

[0015] Figure 3 It is a schematic cross-sectional view of the connection structure between the discharging mechanism and the crushing mechanism of the utility model.

[0016] In the figure: 1. bracket; 2. crushing bin; 3. feed hopper; 4. transport bottom bin; 5. discharge bin; 6. discharge pipe; 7. spiral feed shaft; 8. reduction motor; 9. first rotating shaft; 10. first transmission assembly; 11. crushing knife group; 12. filter screen; 13. second transmission assembly; 14. second rotating shaft; 15. discharge fan blade group; 16. cleaning door; 17. third transmission assembly; 18. driving shaft. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] See also Figure 1-3 A pulverizing device for producing alumina micropowder in this embodiment includes a pulverizing mechanism, a bracket 1 is fixedly installed on the outside of the pulverizing mechanism, a driving mechanism is arranged on the outside of the pulverizing mechanism, and a discharging mechanism is arranged on the left side of the bracket 1.

[0019] In this embodiment, the discharge mechanism includes a discharge bin 5, which is fixedly installed on the left side of the bracket 1. The top of the discharge bin 5 is connected to a discharge pipe 6. A second rotating shaft 14 with one end penetrating through and extending to the right side of the discharge bin 5 is rotatably installed on the left side of the inner wall of the discharge bin 5. A third transmission assembly 17 is arranged on the outside of the second rotating shaft 14. A discharge fan blade group 15 is fixedly installed on the outside of the second rotating shaft 14 and located inside the discharge bin 5. A cleaning door 16 is embedded on the right side of the discharge bin 5.

[0020] Specifically, the driving mechanism is started to rotate the crushing mechanism, and then the second rotating shaft 14 is driven to rotate through the third transmission assembly 17, so that the discharge fan group 15 can rotate rapidly to form an airflow, so that the powder that meets the standards transmitted by the crushing mechanism is driven by the airflow to be blown out through the discharge pipe 6, and the powder that does not meet the standards and is too heavy is cleaned out through the cleaning door 16 after the device is used and crushed again.

[0021] In this embodiment, the crushing mechanism includes a crushing bin 2, which is fixedly mounted on the top of the bracket 1, and the top of the crushing bin 2 is connected to the feed hopper 3, and the bottom of the crushing bin 2 is fixedly mounted with a transport bottom bin 4, and the right side of the transport bottom bin 4 is rotatably mounted with a spiral feeding shaft 7 with one end penetrating and extending to the inside of the transport bottom bin 4, and the right side of the crushing bin 2 is rotatably mounted with a driving shaft 18 with one end penetrating and extending to the inside of the crushing bin 2, and a crushing knife group 11 is fixedly mounted outside the driving shaft 18 and located inside the crushing bin 2, and a filter screen plate 12 is fixedly mounted inside the crushing bin 2 and located below the crushing knife group 11, and the second rotating shaft 14, the spiral feeding shaft 7 and the driving shaft 18 are all rotatably connected to the bracket 1 through bearings, and the crushing bin 2 and the transport bottom bin 4 are fixedly mounted inside the bracket 1, and the filter screen plate 12 is fixedly connected to the crushing bin 2 by bolts.

[0022] It should be noted that a protective door is provided on the top of the feed hopper 3 to effectively prevent external dust from entering and aluminum oxide powder in the crushing bin 2 from splashing.

[0023] Specifically, the lump alumina is placed into the interior of the crushing bin 2 through the feed hopper 3, and the driving mechanism drives the driving shaft 18 and the spiral feeding shaft 7 to rotate. The driving shaft 18 drives the crushing knife group 11 to rotate quickly to crush the lump alumina, and the crushed alumina powder is filtered through the filter plate 12, and the remaining substandard lump alumina continues to be crushed. At the same time, the spiral feeding shaft 7 sends the alumina powder into the discharge mechanism for secondary sorting, thereby improving the uniformity of the alumina micropowder and improving the quality of the alumina micropowder.

[0024] In this embodiment, the driving mechanism includes a reduction motor 8, which is fixedly mounted on the top rear side of the bracket 1. The reduction motor 8 is located on the rear side of the crushing bin 2. A first rotating shaft 9 is fixedly mounted on the output end of the reduction motor 8. A first transmission component 10 having one end arranged on the outside of the driving shaft 18 is arranged on the outside of the first rotating shaft 9. A second transmission component 13 having one end arranged on the outside of the spiral feeding shaft 7 is arranged on the outside of the driving shaft 18.

[0025] It should be noted that the first transmission assembly 10, the second transmission assembly 13 and the third transmission assembly 17 all include two pulleys and a transmission belt. The first transmission assembly 10 enables the first rotating shaft 9 to drive the driving shaft 18 to rotate, thereby realizing rapid crushing of the crushing knife group 11; the second transmission assembly 13 enables the driving shaft 18 to drive the spiral feeding shaft 7 to rotate, so that the filter screen plate 12 in the crushing bin 2 filters the powder for rapid transportation; the third transmission assembly 17 enables the driving shaft 18 to drive the second rotating shaft 14 to rotate, so that the discharging mechanism realizes secondary sorting of the alumina powder, thereby saving energy and reducing emissions.

[0026] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0027] 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 pulverizing device for producing alumina micropowder, characterized in that: It comprises a crushing mechanism, a bracket (1) is fixedly mounted on the outside of the crushing mechanism, a driving mechanism is arranged on the outside of the crushing mechanism, and a discharge mechanism is arranged on the left side of the bracket (1); The discharging mechanism comprises a discharging bin (5), the discharging bin (5) being fixedly mounted on the left side of the bracket (1), the top of the discharging bin (5) being connected to a discharge pipe (6), a second rotating shaft (14) having one end penetrating through and extending to the right side of the discharging bin (5) being rotatably mounted on the left side of the inner wall of the discharging bin (5), a third transmission assembly (17) being arranged outside the second rotating shaft (14), a discharging fan assembly (15) being fixedly mounted outside the second rotating shaft (14) and inside the discharging bin (5), and a cleaning door (16) being embedded on the right side of the discharging bin (5).

2. A pulverizing device for producing alumina micropowder according to claim 1, characterized in that: The pulverizing mechanism comprises a pulverizing bin (2), the pulverizing bin (2) being fixedly mounted on the top of a bracket (1), the top of the pulverizing bin (2) being connected to a feed hopper (3), the bottom of the pulverizing bin (2) being fixedly mounted with a transport bin (4), the right side of the transport bin (4) being rotatably mounted with a spiral feed shaft (7) having one end penetrating through and extending into the interior of the transport bin (4), the right side of the pulverizing bin (2) being rotatably mounted with a drive shaft (18) having one end penetrating through and extending into the interior of the pulverizing bin (2), a pulverizing blade assembly (11) being fixedly mounted outside the drive shaft (18) and inside the pulverizing bin (2), and a filter screen plate (12) being fixedly mounted inside the pulverizing bin (2) and below the pulverizing blade assembly (11).

3. A pulverizing device for producing alumina micropowder according to claim 2, characterized in that: The driving mechanism comprises a reduction motor (8), the reduction motor (8) being fixedly mounted on the top rear side of the bracket (1), the reduction motor (8) being located on the rear side of the crushing bin (2), a first rotating shaft (9) being fixedly mounted on the output end of the reduction motor (8), a first transmission component (10) having one end arranged on the outside of the driving shaft (18) being arranged on the outside of the first rotating shaft (9), and a second transmission component (13) having one end arranged on the outside of the spiral feeding shaft (7) being arranged on the outside of the driving shaft (18).

4. A pulverizing device for producing alumina micropowder according to claim 2, characterized in that: The second rotating shaft (14), the spiral feeding shaft (7) and the driving shaft (18) are all rotatably connected to the bracket (1) via bearings; the crushing bin (2) and the transport bottom bin (4) are fixedly mounted inside the bracket (1); and the filter screen plate (12) is fixedly connected to the crushing bin (2) via bolts.

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