Internal water-cooling ball mill, and ball mill method

A ball mill and water internal cooling technology, applied in grain processing and other directions, can solve the problems of wide range of slurry particle size distribution, poor cooling effect, long ball milling time, etc. Effect

Active Publication Date: 2007-12-26
东阳富仕特磁业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention mainly aims at the problems existing in the prior art such as poor cooling effect, long ball milling time, and wide slurry particle size distribution range, etc., and provides a water pump with reasonable structure, good cooling effect, short ball milling time, and reasonable slurry particle size distribution range. Internal cooling ball mill and ball milling method thereof

Method used

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  • Internal water-cooling ball mill, and ball mill method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] As shown in Figure 1, the cylinder 1 is supported by the main shaft 4, the bearing 6 and the bearing seat 5 to form a rotating body. The torque output by the motor 11 is transmitted to the reducer 9 through the transmission belt 10, and the output shaft of the reducer 9 is installed with The small gear 8 transmits the power to the big gear 3, and the big gear 3 is connected with the cylinder 1 to drive the cylinder 1 to rotate; the cylinder 1 has a lining 2, and the outside is a shell, and there is a hollow interlayer between the two layers, and the main shaft has a hollow The axial connecting pipe of the connecting pipe communicates with the hollow interlayer. The water inlet pipe 12 is connected with the connecting pipe of the main shaft on one side, and the water outlet pipe 7 is connected with the connecting pipe of the main shaft on the other side. The connection between the main shaft 4 and the shell is closed.

[0027] When the ball mill is running, the material...

Embodiment 2

[0031] The ratio of material, steel ball and water is material: steel ball: water=1:8:1.3. The ball mill is equipped with chromium alloy steel balls with a hardness of HRC62-65. At the same time, water is also added to the materials in the cylinder, and they are mixed and milled together. The constant C is 38, so the speed n of the ball mill is 38 1 / 2 / D rev / min to rotate. A ball mill with an inner diameter of 5 m is used, and the rotation speed is 1.233 rpm at this time. And the state of the steel balls in the ball mill at this time is shown in Figure 4.

[0032] All the other are identical with embodiment 1.

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Abstract

The invention relates to a ball grinding method which is used in the ferrite magnetic material profession, particularly relates to water inside cold ball mill and its ball grinding method. The invention aims at the questions which has bad cooling performance, the long ball grinding time, the wide ground paste grain-size distribution scope and so on, provides a water inside cold ball mill which has a reasonable structure, the good cooling performance, the short ball grinding time, reasonable ground paste grain-size distribution scope and its ball grinding method. The primary coverage of the invention is: water inside cold ball mill, which is composed of the tube body, the main axle of company connecting sleeve body, the electric motor, the link electric motor and reduction gear of main axle, bearing seat of supports main axle, the tube body structure is the double-deck, there is a hollow interlayer between two layers, the main axle has the mid heaven axial connecting pipe; the cooling water flows from an center bore of end main axle, flows out through the tube body band from center bore of another end main axle, the tube body rotates by the speed n.

Description

technical field [0001] The invention relates to a ball milling method used in the ferrite magnetic material industry, in particular to a water internal cooling ball mill and a ball milling method thereof. Background technique [0002] At present, during the calcining process of permanent ferrite magnetic materials, the free SrO and BaO in the calcined material react with water to form Sr(OH) 2 and Ba(OH) 2 ; When the temperature in the ball mill barrel increases, the generated Sr(OH) 2 and Ba(OH) 2 The more, the slurry particles will agglomerate and the viscosity will increase. Therefore, the generated Sr(OH) 2 and Ba(OH) 2 The coercive force Hc is reduced; the slurry particles are agglomerated and viscous, which affects the orientation degree of the crystal grains and reduces the remanence Br. Most of the ball mills used for permanent ferrite magnetic materials are rolling ball mills. The powder of permanent ferrite magnetic materials needs to be ground and pulverized...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B02C17/18B02C17/24B02C17/20
Inventor 秦福明
Owner 东阳富仕特磁业有限公司
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