CN1465439A

CN1465439A - Vertical air stream lash micropowder preparation apparatus

Info

Publication number: CN1465439A
Application number: CNA021142297A
Authority: CN
Inventors: 韩洪波; 范顺利
Original assignee: ZHUZHOU JINKE INDUSTRY Co Ltd
Current assignee: ZHUZHOU JINKE INDUSTRY Co Ltd
Priority date: 2002-07-01
Filing date: 2002-07-01
Publication date: 2004-01-07

Abstract

The vertical pneumatic impact micropowder processing is formed from pulverizer, turbo-sorting machine, feeding machine, filter bag collector, motor and blower fan, and is characterized by that the communicating pipe for connecting pulverizer and turbo-sorting machine is a double-layer two-channel pneuamtic pipe, and the hammerhead set on the rotating disk mounted on the rotor of inner cavity of the pulverizer is made of hard alloy material.

Description

A kind of vertical air stream lash micropowder preparation apparatus

Technical field

The present invention relates to a kind of vertical air stream lash micropowder preparation apparatus, belong to gas shock grinding method and equipment class.

Background technology

The grain fineness and the size distribution situation of producing the cobalt acid lithium material of lithium battery are one of key factors of decision lithium battery seasoning electric energy.But present domestic making or obtain the physical method of trickle mineral, trickle material still mainly is the method that adopts ball milling to sieve.The major defect of this conventional method is that the place takies greatly, and equipment investment is also big; Labor intensity of operating staff is also big; The demand that fine powder degree that main is obtains after pulverizing in this way and size distribution index are difficult to satisfy fully high-quality lithium battery performance.

In the last few years, also the someone want to come the fine powder of processing metal with the gas shock flour mill, polluted but its alloy tup of general gas shock flour mill has wearing and tearing to product in process, therefore simply applied mechanically the scheme that neither deal with problems.

Purpose of the present invention: aim to provide a kind of vertical gas shock grinding mechanism that adapts to the fine powder production requirement of cobalt acid lithium, can reach and reduce the place equipment investment, alleviate or eliminate environmental pollution and contamination of products, alleviate labor strength, can guarantee the granularity requirements of product again.

This vertical air stream lash micropowder preparation apparatus is made up of flour mill (1), turbine classifier (2), batcher (3), filter bag gatherer (5) and motor (9), exhaust blower (6) etc., and the communicating pipe (10) that it is characterized in that connecting flour mill (1) and vortex classifier (2) is pair of lamina two passage wind conveying pipes; The tup (13) on the set rotating disk (17,18) is made by Hardmetal materials on described flour mill (1) the inner chamber rotor simultaneously.

The set grinding liner (12) that is complementary with carbide alloy tup (13) is also made by alloy material on described flour mill (1) the inner chamber perisporium.

According to this vertical gas shock powder micron mill of above technical scheme design, its advantage is:

1, since participate in material grinding main medium---tup and grinding liner are made by Hardmetal materials, therefore not only improve the service life of tup and grinding liner greatly; And because the raising of the wearability of material can effectively prevent the pollution of powder grinding medium to finished product, this is very favourable for the impurity content that reduces in the fine powder of cobalt acid lithium;

2, owing to adopt the communicating pipe structure of double-deck two passages, thereby make between flour mill and the turbine classifier and to form inside and outside two classification selection by winnowing passages, promptly the internal channel by the center makes by comminuting matter and rises with ascending air, allows satisfactory subparticle enter product collector by the sorting guard; And make simultaneously particle slightly slightly still undesirable powder in the communicating pipe outer layer channel, fall to returning the flour mill inner chamber, continued to pulverize by the alloy tup once more, after qualified, be admitted to product collector.

3, the outlet with turbine classifier directly is connected with the filter bag gatherer, and be connected with exhaust blower by the outlet of this gatherer, forms a continuous negative pressure finished product gathering system thus.

Take above-mentioned three improvement just, thereby make air stream lash micropowder preparation apparatus of the present invention can make the granularity and the size distribution of the fine powder of cobalt acid lithium all right in actual use, meet and produce the lithium battery requirement.

Description of drawings

Accompanying drawing 1 is an overall structure schematic diagram of the present invention;

Accompanying drawing 2 is grinding one hierarchy system structural representation of the present invention.

Among the figure: 1, flour mill 2, turbine classifier 3, batcher 4, lubricating coupler 5, filter bag gatherer 6, exhaust blower 7, flour mill rotating shaft 8, frame 9, motor 10, communicating pipe 11, auxiliary liner 12, grinding liner 13, tup 14, flour mill inner chamber 15, turbine classifier inner chamber 16, outer tunnel 17, top rotary table 18, lower rotary table.

The specific embodiment

This vertical air stream lash micropowder preparation apparatus is taken out (1), turbine classifier (2), batcher (3), filter bag gatherer (5) and motor (9), blower fan (6) etc. by grinding and is formed, and the communicating pipe (10) that it is characterized in that connecting flour mill (1) and vortex classifier (2) is pair of lamina two passage wind conveying pipes; The tup (13) on the set rotating disk (17,18) is made by Hardmetal materials on described flour mill (1) the inner chamber rotor simultaneously.

The special equipment that the fine powder of this suitable cobalt acid lithium is produced, its operation principle is as follows:

1, is fed into machine

Send on lower floor's rotating disk (18) of flour mill (1) inner chamber by the powder that the precession device of feeder (3) will be processed.

2, grinding sorting

Start after the starter motor (10) and exhaust blower (6) of flour mill (1), owing to make the flour mill inner chamber form negative pressure (can certainly connect a pressure fan in addition) at air inlet, therefore, rotation with flour mill rotor (7), the rotating disk that has carbide alloy tup (13) will fast rotational, makes thus to fall into being clashed into tup (13) by comminuting matter in the lower rotary table (18) under action of centrifugal force; In this process, the grinding liner (12) that is located at simultaneously on the flour mill perisporium also clashes into pulverizing to material together with tup.Meanwhile, because the effect of ascending air makes by comminuting matter and takes top rotary table (17) to, grinding once more under the effect of top rotary table (17); In this a part of cavity space, bump is pulverized under tup, the effect of grinding liner on the one hand; On the other hand because ascending air forms eddy current at this, thus the powder in the air-flow mutually between also friction mutually, bump is pulverized, and is finally also risen to turbine extension set (2) by the subparticle of grinding along the central passage of communicating pipe (10); Because the stopping of grader (2) screen cloth closed the grader that enters of symbol granularity requirements, and greater than the particle of screen cloth mesh, under centrifugal action, fly to send flying again and fall into the communicating pipe outer layer channel and return the flour mill cavity and continue grinding.

3, negative pressure sucks the filter bag gatherer

Fine powder from turbine classifier (2) is discharged at exhaust blower negative pressure draft effect, enters filter bag gatherer (5); Collecting what send by the filter bag gatherer promptly is to close the qualified powder of cobalt acid lithium that symbol requires.

In the technology of above-mentioned grinding separation of cobalt acid lithium material, on the communicating pipe (10) that connects flour mill (1) and turbine classifier (2), also can design the secondary air mouth and help to collect a material material, and the coarse granule material is sent into feeder (3); Then sending into flour mill again pulverizes.

Claims

1, a kind of vertical air stream lash micropowder preparation apparatus is taken out (1), turbine classifier (2), batcher (3), filter bag gatherer (5) and motor (9), blower fan (6) etc. by grinding and is formed, and the communicating pipe (10) that it is characterized in that connecting flour mill (1) and vortex classifier (2) is pair of lamina two passage wind conveying pipes; The tup (13) on the set rotating disk (17,18) is made by Hardmetal materials on described flour mill (1) the inner chamber rotor simultaneously.

2, a kind of vertical air stream lash micropowder preparation apparatus as claimed in claim 1 is characterized in that the set grinding liner (12) that is complementary with carbide alloy tup (13) is also made by alloy material on described flour mill (1) the inner chamber perisporium.