在磨機(jī)的研磨介質(zhì)類型中大小的減少和機(jī)械化學(xué)磨損是受磨球所有接觸點(diǎn)的沖擊,壓縮,剪切和摩擦影響的.因此,為了開發(fā)新材料,找出研磨機(jī)制和生產(chǎn)超細(xì)粒子,了解球磨機(jī)中球的運(yùn)動(dòng)特點(diǎn)是非常重要的.
研磨介質(zhì)攪拌磨由于它的高能源效率,精細(xì),超精細(xì)粉碎能力和少污染在許多行業(yè)里已被用來作為超細(xì)磨機(jī)的一種類型,如礦產(chǎn),陶瓷原料,化工產(chǎn)品及其他材料.[1-3]計(jì)算機(jī)仿真技術(shù)對(duì)研究顆粒流動(dòng)的集合或分散特別是那種很難在直接實(shí)驗(yàn)中獲得的詳細(xì)結(jié)果是非常有用的.DEM是庫德爾提出的一項(xiàng)模擬處理一個(gè)不連續(xù)的行為粒子系統(tǒng)的任何問題的方案[4],庫德爾是第一個(gè)使用這種類型的模型來研究顆粒組件的人.從那時(shí)起,這些模型已被廣泛應(yīng)用在不連續(xù)的粒子系統(tǒng)模擬[5].對(duì)球磨機(jī)許多種類的模擬進(jìn)行了研究:在歪斜狀的磨機(jī)里球的三維運(yùn)動(dòng)[6,7],磨機(jī)的電源[8,9]和一個(gè)離心粉碎機(jī)功率[10].不過,到了現(xiàn)在,已經(jīng)很少對(duì)攪拌磨研磨介質(zhì)進(jìn)行仿真研究.在攪拌球磨機(jī)里,與傳統(tǒng)翻滾球磨機(jī)的簡(jiǎn)單動(dòng)力學(xué)計(jì)算相比較,也有一些攪拌器和其消耗粉的計(jì)算變得更加復(fù)雜[11,12].
本文的目的是模擬在攪拌球磨機(jī)里研磨介質(zhì)球的運(yùn)動(dòng),并檢查在以球與球之間和球與攪拌機(jī)之間所有的接觸點(diǎn)微觀互動(dòng)的力量的基礎(chǔ)上消耗的功率.
英語翻譯
英語翻譯
The size reduction and mechano-chemical grinding in a grind-
ing media type of mill are influenced by impact,compression,shear,
and friction at all the contact points of balls in the mill.Therefore,
understanding the behavior of ball movement in the mill is very
important to identify the grinding mechanism and to produce ultra-
fine particles for developing new materials.
Stirred grinding media mill has been used as a type of an ultra-
fine grinding mill in many industries such as minerals,ceramic ma-
terials,chemical products and other materials due to its high energy
efficiency,fine and ultra-fine grinding ability,and reduced contam-
ination [1-3].The computer simulation technique for studying the
flow of granular assemblies or powders is useful especially for ob-
taining detailed results from the task in that direct experimentation
is difficult.DEM is a scheme to simulate any problem dealing with
the behavior of a discontinuous particle system by Cundall [4],who
first used this type of model to study granular assemblies.Since
then,these models have become widely applied to the simulation
of a discontinuous particle system [5].Many kinds of simulations
for the ball mill have been studied:the 3-dimensional behaviors of
ball movement in a tumbling mill [6,7],the power of a tumbling
mill [8,9],and the power of a centrifugal mill [10].However,up to
now,there has been little simulation research for stirred grinding
media mill.In the stirred ball mill,there are some stirrers and the
calculation of its consumed powder becomes more complicated to
compare with the simpler kinetics of conventional tumbling ball
mill [11,12].
The objective of this paper is to simulate the motion of grinding
media balls in stirred grinding media mill and to examine the con-
sumed power based on the micro interactive forces at all the contact
points between balls and between ball and stirrer.
我就100分了,全拿出來了.
是關(guān)于球磨攪拌機(jī)的,另:我不要翻譯軟件翻譯出來的東東
The size reduction and mechano-chemical grinding in a grind-
ing media type of mill are influenced by impact,compression,shear,
and friction at all the contact points of balls in the mill.Therefore,
understanding the behavior of ball movement in the mill is very
important to identify the grinding mechanism and to produce ultra-
fine particles for developing new materials.
Stirred grinding media mill has been used as a type of an ultra-
fine grinding mill in many industries such as minerals,ceramic ma-
terials,chemical products and other materials due to its high energy
efficiency,fine and ultra-fine grinding ability,and reduced contam-
ination [1-3].The computer simulation technique for studying the
flow of granular assemblies or powders is useful especially for ob-
taining detailed results from the task in that direct experimentation
is difficult.DEM is a scheme to simulate any problem dealing with
the behavior of a discontinuous particle system by Cundall [4],who
first used this type of model to study granular assemblies.Since
then,these models have become widely applied to the simulation
of a discontinuous particle system [5].Many kinds of simulations
for the ball mill have been studied:the 3-dimensional behaviors of
ball movement in a tumbling mill [6,7],the power of a tumbling
mill [8,9],and the power of a centrifugal mill [10].However,up to
now,there has been little simulation research for stirred grinding
media mill.In the stirred ball mill,there are some stirrers and the
calculation of its consumed powder becomes more complicated to
compare with the simpler kinetics of conventional tumbling ball
mill [11,12].
The objective of this paper is to simulate the motion of grinding
media balls in stirred grinding media mill and to examine the con-
sumed power based on the micro interactive forces at all the contact
points between balls and between ball and stirrer.
我就100分了,全拿出來了.
是關(guān)于球磨攪拌機(jī)的,另:我不要翻譯軟件翻譯出來的東東
英語人氣:725 ℃時(shí)間:2019-09-27 16:19:47
優(yōu)質(zhì)解答
我來回答
類似推薦
猜你喜歡
- 1二次函數(shù)公式 頂點(diǎn)式和一般式的對(duì)稱軸,頂點(diǎn)坐標(biāo),X和Y的關(guān)系,最大值
- 2溫室效應(yīng)的產(chǎn)生與影響 研究目的
- 3以'"驚喜"為話題的優(yōu)秀作文
- 4造成空氣污染的有害物質(zhì)可分為( )和( )兩大類,目前計(jì)入空氣污染指數(shù)的項(xiàng)目暫定為( )( )( )
- 5Nor的用法
- 6化學(xué)肥料主要有______,______,______三大類.含氮量最高的化肥是______,復(fù)合肥料是______(填化學(xué)式).
- 7已知a2+2ab+b2-4(a+b-1)=0,求a+b-3的值.
- 8電位和電壓有什么異同?
- 91、2位和3、4位是反義詞的成語
- 10大道之行也中是謂大同中大同的今義
- 11Fe與稀硝酸反應(yīng)分哪兩種情況?
- 12平衡計(jì)分卡的指標(biāo)體系是什么?