CN218078264U

CN218078264U - Processing superfine aluminium hydroxide is with smashing grinder

Info

Publication number: CN218078264U
Application number: CN202221875408.XU
Authority: CN
Inventors: 武超; 高伟强; 高延峰; 高锟
Original assignee: Zhengzhou North Aluminum Co ltd
Current assignee: Zhengzhou North Aluminum Co ltd
Priority date: 2022-07-06
Filing date: 2022-07-06
Publication date: 2022-12-20
Anticipated expiration: 2032-07-06

Abstract

The utility model relates to a technical field of miropowder grinding device, specifically a processing superfine aluminium hydroxide is with smashing grinder, crushing unit, grinding unit and air supply subassembly, grinding unit communicates in crushing device, the air supply subassembly communicates in grinding unit, grinding unit is including grinding the storehouse, the lapping plate, select powder post and selection powder section of thick bamboo, grind storehouse side lower extreme fixedly connected with air inlet, the air inlet is ground the storehouse and is followed the tangent line installation, the lapping plate is laid in and is ground the storehouse inner wall, the selection powder post runs through and grinds storehouse top connection collection component, selection powder post lower extreme is located to selection powder barrel casing, it is the filter screen to select powder section of thick bamboo lateral wall, be provided with the aspiration pump in the collection component. The particle that enters into the selection powder column is screened through the filter screen, and the ATH powder particle size distribution range is controlled through screening, so that the particle size is more stable, and the product performance is improved.

Description

Grinding device for processing superfine aluminum hydroxide

Technical Field

The application relates to the technical field of micro powder grinding equipment, in particular to a grinding device for processing superfine aluminum hydroxide.

Background

The preparation method of the superfine aluminum hydroxide comprises a physical method and a chemical method. Physical methods are generally referred to as mechanical methods; chemical rules include seed precipitation, sol-gel precipitation, etc. The mechanical method is to grind aluminum hydroxide powder into fine ATH powder by a stirring mill, a jet mill and other equipment. The aluminum hydroxide flows into the grinding part after being crushed by the crushing part, the gas is introduced to the bottom of the grinding part, the aluminum hydroxide powder is driven by the gas to move and collide with each other, the grinding is completed, and finally the aluminum hydroxide powder is carried out by gas powder separation. However, the ATH powder produced by the method has wide particle size distribution, generally in the range of 5-15 μm, and the product performance is poor.

Disclosure of Invention

To the not enough of prior art existence, the purpose of this application is to provide a stable processing superfine aluminium hydroxide of play powder particle diameter is with smashing grinder.

The above application purpose of the present application is achieved by the following technical solutions:

a grinding and grinding device for processing superfine aluminum hydroxide comprises:

a crushing assembly for crushing the aluminum hydroxide;

the grinding assembly is used for grinding the aluminum hydroxide and communicated with the crushing equipment;

the gas source assembly is communicated with the grinding assembly;

the grinding assembly includes:

the grinding bin is cylindrical, the lower end of the side face of the grinding bin is fixedly connected with an air inlet, and the air inlet is formed in the grinding bin along a tangent line;

the grinding plate is laid on the inner wall of the grinding bin;

the powder selecting column is cylindrical and penetrates through the top of the grinding bin to be connected with a collecting assembly;

the powder selecting cylinder is sleeved at the lower end of the powder selecting column, and the side wall of the powder selecting cylinder is provided with a filter screen;

wherein, be provided with the aspiration pump in the collection subassembly.

Optionally, the bottom of the grinding bin is rotatably provided with a pneumatic impeller, the pneumatic impeller is connected with the powder selecting barrel, and the powder selecting barrel is rotatably arranged on the powder selecting column.

Optionally, the air inlets are at least three, and a plurality of the air inlets are circumferentially arrayed.

Optionally, a commutator is installed in the grinding bin, the input end of the commutator is fixedly connected to the pneumatic impeller, and the output end of the commutator is fixedly connected to the powder selecting barrel.

Optionally, the wind turbine blade is provided as a grinding plate.

Optionally, the inner side wall of the grinding bin is fixedly connected with a jump block, the jump block comprises a windward surface, the windward surface faces the cyclone direction of the air inlet, and one side of the windward surface is attached to the inner side wall of the grinding bin.

Optionally, the windward side is arc-shaped.

Optionally, a plurality of stabs are arrayed on the windward side.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the particles entering the powder selecting column are screened through the filter screen, the air pump arranged in the collecting assembly assists the powder particles to flow, the particles can conveniently pass through the filter screen, the particle size distribution range of the ATH powder is controlled through screening, the particle size is more stable, and the product performance is improved;

2. the bottom of the grinding bin is provided with the pneumatic impeller, and the pneumatic impeller is pushed to rotate by air at the air inlet, so that the powder selecting barrel is driven to rotate. The agglomeration of powder on a filter screen is reduced, the powder selection efficiency is increased, and meanwhile, the powder selection cylinder is pushed to rotate through airflow, so that the mechanical structure is simplified, and the influence of the powder on a transmission structure and the influence of the transmission structure on the sealing performance are reduced;

3. the powder leaves the inner side wall of the grinding bin along the jump block in the cyclone motion process formed along with the gas at the gas inlet, and collides with the inner side wall of the grinding bin again under the action of centrifugal force, so that the grinding efficiency is improved.

Drawings

FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present application;

FIG. 2 is a schematic view of an embodiment of an abrasive assembly according to the present disclosure;

FIG. 3 is a schematic structural diagram of a powder selecting barrel according to an embodiment of the application;

fig. 4 is a schematic structural diagram of a commutator in an embodiment of the present application.

Reference numerals are as follows: 1. a size reduction assembly;

2. a grinding assembly; 21. a grinding bin; 211. an air inlet; 212. a jump block; 22. a grinding plate; 2121. the windward side; 23. selecting a powder column; 24. selecting a powder cylinder; 241. filtering with a screen; 242. a framework; 25. a wind driven impeller; 261. a commutator; 2621. a box body; 2622. an input gear; 2623. an output gear; 2624. a reversing gear;

3. a gas source assembly;

4. and (4) collecting the components.

Detailed Description

The present application is described in further detail below with reference to the attached drawings.

In order to more clearly understand the technical solution shown in the embodiments of the present application, the working principle of the existing pulverizing and grinding apparatus for processing ultrafine aluminum hydroxide will be described first.

The existing grinding device is ground after being crushed, the ground particles are collided and rubbed under the drive of gas, and the powder reaching the particle size is taken out of the grinding device through the gas.

From the perspective of users, because the air winnowing is unstable, the ATH powder produced by the method has wide particle size distribution, generally in the range of 5-15 μm, and the product performance is poor.

Referring to fig. 1 and fig. 2, a pulverizing assembly 1, a grinding assembly 2, and an air source assembly 3 are disclosed in an embodiment of the present application, where the pulverizing assembly 1 is used for pulverizing aluminum hydroxide, the grinding assembly 2 is used for grinding aluminum hydroxide, the grinding assembly 2 is communicated with the pulverizing apparatus 1, the air source assembly 3 is communicated with the grinding assembly 2, the grinding assembly 2 includes a grinding chamber 21, a grinding plate 22, a powder selecting column 23, and a powder selecting cylinder 24, the grinding chamber 21 is cylindrical, a lower end of a side surface of the grinding chamber 21 is fixedly connected with an air inlet 211, the air inlet 211 is installed along a tangent line of the grinding chamber 21, the grinding plate 22 is laid on an inner wall of the grinding chamber 21, the powder selecting column 23 is cylindrical, the powder selecting column 23 penetrates through a top of the grinding chamber 21 to connect with a collecting assembly 4, the powder selecting cylinder 24 is sleeved on a lower end of the powder selecting column 23, a side wall of the powder selecting cylinder 24 is a filter screen 241, and an air pump is disposed in the collecting assembly 4.

Specifically, after entering the grinding assembly 2 from the grinding assembly 1, the particles fall into the bottom of the grinding chamber 21, and are pushed by the gas in the gas inlet 211 to impact the grinding plate 22 or impact each other, and are driven by the gas flow to enter the collection assembly 4 through the powder selecting cylinder 24.

Like this, filter 241 screens the granule that enters selection powder post 23 to through the aspiration pump that sets up in collecting component 4, supplementary powder granule flows, the granule of being convenient for passes through filter 241. The granularity distribution range of the ATH powder is controlled by screening, so that the granularity is more stable, and the product performance is improved.

In some feasible manners, the pulverizing assembly 1, the air source assembly 3 and the collecting assembly 4 are all existing jet mill assemblies, the grinding bin 21 is cylindrical, the air inlet 211 penetrates through the wall of the grinding bin 21 along the tangential direction of the grinding bin 21, so that the air entering the grinding bin 21 flows along the inner side wall of the grinding bin 21, the powder selecting column 23 is cylindrical, and the powder selecting column 23 penetrates through the top of the grinding bin 21 and is connected with the collecting assembly 4 and the air pump. Referring to fig. 3, the powder selecting cylinder 24 includes a filter screen 241, a framework 242 is supported in the filter screen 241, two ends of the framework 242 are both circular rings, the filter screen 241 is fixedly connected to an inner side wall of the circular ring, a plurality of support columns are arranged along a circumference array in the inner side of the filter screen 241, and two ends of each support column are respectively fixedly connected to two circular rings.

In one embodiment of the crushing and grinding device for processing ultrafine aluminum hydroxide, a pneumatic impeller 25 is rotatably mounted at the bottom of the grinding bin 21, the pneumatic impeller 25 is connected with a powder selecting cylinder 24, and the powder selecting cylinder 24 is rotatably mounted on the powder selecting column 23.

On the whole, a pneumatic impeller 25 is installed at the bottom of the grinding bin 21, and the pneumatic impeller 25 is pushed to rotate through the air inlet 211, so that the powder selecting barrel 24 is driven to rotate. The superfine powder has small particle size and high surface energy, is easy to agglomerate, reduces the agglomeration of the powder on the filter screen 241 by rotating the powder selecting cylinder 24, increases the powder selecting efficiency, simultaneously pushes the powder selecting cylinder 24 to rotate by air flow, simplifies the mechanical structure, reduces the influence of the powder on the transmission structure and the influence of the transmission structure on the sealing property.

Further, the air inlets 211 are provided with at least three, and a plurality of air inlets 211 are circumferentially arrayed.

It should be appreciated that a plurality of air inlets 211 are provided to facilitate the rotation of the wind rotor 25.

Further, a commutator 261 is installed in the grinding bin 21, the input end of the commutator 261 is fixedly connected to the pneumatic impeller 25, and the output end of the commutator 261 is fixedly connected to the powder selecting barrel 24.

It should be understood that, through the reversing of the reverser 261, the powder selecting cylinder 24 is rotated in a reverse airflow direction, so that the powder can enter the filter screen 241 more conveniently, and the powder selecting efficiency is improved.

Further, the wind driven impeller 25 blades are provided as a grinding plate 22.

It will be appreciated that the powder is rubbed by the rotational impact of the pneumatic impeller 25, increasing the grinding of the powder.

In some feasible modes, a fixed column is installed at the center of the bottom of the grinding bin 21, the pneumatic impeller 25 is rotatably sleeved on the fixed column, and bearings are arranged between the pneumatic impeller 25 and the fixed column and between the powder selecting barrel 24 and the powder selecting column 23 for facilitating rotation. Referring to fig. 4, the commutator 261 includes a sealed housing 2621, an input gear 2622 and an output gear 2623 are rotatably and mirror-symmetrically mounted on one set of opposite sides of the housing 2621, the input gear 2622 and the output gear 2623 are directly engaged with a commutation gear 2624, and the commutation gear 2624 is rotatably mounted on the housing 2621. The input gear 2622 is connected with the pneumatic impeller 25 through a rod, the output gear 2623 is connected with the powder selecting cylinder 24 through a rod, and the box 2621 is fixedly connected with the side wall of the grinding bin 21.

In one embodiment of the grinding and polishing apparatus for processing ultra-fine aluminum hydroxide, a jump block 212 is fixedly connected to an inner sidewall of the polishing chamber 21, the jump block 212 includes a windward surface 2121 facing the cyclone direction of the air inlet 211, and the windward surface 2121 is attached to the inner sidewall of the polishing chamber 21.

In combination with a specific use scene, the powder leaves the inner side wall of the grinding bin 21 along the jump block 212 in the process of cyclone motion formed along the gas of the gas inlet 211 and collides with the inner side wall of the grinding bin 21 again under the action of centrifugal force, so that the grinding efficiency is improved.

Further, the windward side 2121 is arc-shaped.

It will be appreciated that the curved windward side 2121 provides a smoother powder flow.

Furthermore, a plurality of stabs are arrayed on the windward side 2121.

It is understood that the powder grinding efficiency is increased by the stabbing.

In some feasible manners, the jump block 212 is a triangular prism including two arc-shaped side surfaces, one of the arc surfaces of the jump block 212 is fixedly connected to the inner side wall of the grinding bin 21, and the other arc surface is tangent to the inner side wall and is the windward side 2121.

The embodiments of the present invention are preferred embodiments of the present application, and the scope of protection of the present application is not limited by the embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a processing superfine aluminium hydroxide is with smashing grinder which characterized in that includes:

a comminution assembly (1), the comminution assembly (1) being for comminuting aluminium hydroxide;

the grinding assembly (2) is used for grinding aluminum hydroxide, and the grinding assembly (2) is communicated with the crushing assembly (1);

the gas source assembly (3), the gas source assembly (3) is communicated with the grinding assembly (2);

the grinding assembly (2) comprises:

the grinding bin (21) is cylindrical, the lower end of the side surface of the grinding bin (21) is fixedly connected with an air inlet (211), and the air inlet (211) and the grinding bin (21) are installed along a tangent line;

the grinding plate (22), the said grinding plate (22) is laid on the said grinding storehouse (21) inboard wall;

a powder selecting column (23), wherein the powder selecting column (23) is cylindrical, and the powder selecting column (23) penetrates through the top of the grinding bin (21) and is connected with a collecting assembly (4);

the powder selecting cylinder (24) is sleeved at the lower end of the powder selecting column (23), and a filter screen (241) is arranged on the side wall of the powder selecting cylinder (24);

wherein, an air suction pump is arranged in the collecting component (4).

2. The crushing and grinding device for processing superfine aluminum hydroxide according to claim 1, characterized in that: the bottom of the grinding bin (21) is rotatably provided with a pneumatic impeller (25), the pneumatic impeller (25) is connected with the powder selecting barrel (24), and the powder selecting barrel (24) is rotatably arranged on the powder selecting column (23).

3. The crushing and grinding device for processing superfine aluminum hydroxide according to claim 2, characterized in that: the number of the air inlets (211) is at least three, and the air inlets (211) are arrayed in a circumferential mode.

4. The crushing and grinding device for processing superfine aluminum hydroxide according to claim 2, characterized in that: grind in the storehouse (21) and install commutator (261), commutator (261) input end fixed connection in pneumatic impeller (25), commutator (261) output fixed connection select powder section of thick bamboo (24).

5. The crushing and grinding device for processing superfine aluminum hydroxide according to claim 4, characterized in that: the blades of the wind-driven impeller (25) are arranged as grinding plates (22).

6. The crushing and grinding device for processing superfine aluminum hydroxide according to claim 1, characterized in that: the inner side wall of the grinding bin (21) is fixedly connected with a jump block (212), the jump block (212) comprises a windward surface (2121), the windward surface (2121) faces the cyclone direction of the air inlet (211), and one side of the windward surface (2121) is attached to the inner side wall of the grinding bin (21).

7. The crushing and grinding device for processing superfine aluminum hydroxide according to claim 6, characterized in that: the windward side (2121) is arc-shaped.

8. The crushing and grinding device for processing ultrafine aluminum hydroxide according to claim 7, wherein: a plurality of prickles are arrayed on the windward side (2121).