CGLX 離心選礦機 CGLX Centrifugal Separator

一、概述

CGLX離心機利用不同礦粒之間的密度差異實現(xiàn)礦粒群的選擇性分離，適用于微細粒級黑色、有色及貴重稀有金屬礦物的分選回收，也可用于各種礦山尾礦中微細金屬回收及各種廢礦、難選礦的選礦。該種設(shè)備具有分選指標好、回收微細金屬下限粒度低、能耗小、適應(yīng)性強、不污染環(huán)境等特點。

二、設(shè)備構(gòu)造

如圖1所示，CGLX離心機主要由離心轉(zhuǎn)鼓、機架、給礦裝置、精礦沖洗水裝置、漂洗水裝置、分礦裝置等組成。

1. Introduction

CGLX centrifugal separators separate minerals by making use of their density  difference. It is suitable for processing granular ferrous metals, non-ferrous  metals or for recovering granular metals from tails. They have the advantages of good performance, lower limit of grain  size recovery, lower power, great adaptability and eco-friendly.

2. Structure

CGLX centrifugal separator  mainly consists of centrifugal drum, support frame, rinsing device, concentrate  flush device, discharging device and feed device as shown in Fig.1

1.離心轉(zhuǎn)鼓；2.機架；3.漂洗水裝置；4.轉(zhuǎn)鼓主軸；5.防護機罩；

6.給礦裝置；7.分礦裝置；8.精礦沖洗水裝置；9.轉(zhuǎn)鼓電機；

F-給礦；C-精礦；T-尾礦；Wf-精礦沖洗水；Wx-氣源入口；Wr-漂洗水。

Fig. 1.  CGLX centrifugal  separator

1 = centrifugal drum,  2 = support  frame,  3 = rinsing device,  4 = drum axis,  

 5 = defense  cover, 6=feed device,  7= discharging device,  8=concentrate  flush device,  9=drum driver, 

F = feed,  C = concentrate,  T = tail,

Wf= concentrate flush water,   Wx=air source,  Wr = rinsing water.

三、工作原理

離心轉(zhuǎn)鼓臥式旋轉(zhuǎn)，在轉(zhuǎn)鼓內(nèi)表面上產(chǎn)生徑向均勻分布的離心力場。礦漿由給礦裝置給至轉(zhuǎn)鼓內(nèi)表面上，并在離心轉(zhuǎn)鼓帶動下隨轉(zhuǎn)鼓一起作回轉(zhuǎn)運動。離心轉(zhuǎn)鼓內(nèi)表面沿軸向存在坡降，礦漿液流作回轉(zhuǎn)運動的同時還要以一定的流速沿軸向流動。這樣，礦漿在轉(zhuǎn)鼓內(nèi)表面上呈螺旋狀沿軸向運動。

作螺旋運動的礦漿液流中大比重顆粒在弱紊流流膜和離心力場的聯(lián)合作用下，不同密度礦粒發(fā)生選擇性分離。大比重礦粒群在極短時間內(nèi)離心沉降至離心轉(zhuǎn)鼓的內(nèi)表面上，呈壓實薄層狀顆粒層隨轉(zhuǎn)鼓一起旋轉(zhuǎn)；小比重礦粒群受流膜脈動擴散作用無法到達流膜底層，沿轉(zhuǎn)鼓坡降隨液相一起排出成為小比重產(chǎn)品（尾礦）通過排礦裝置排入尾礦收接槽內(nèi)。當暫停給礦時，精礦沖洗裝置將比重大的產(chǎn)品（精礦）沖卸落至排礦裝置排入精礦收接槽內(nèi)。

CGLX離心機基于離心力場內(nèi)流膜分選原理，為了保證良好的離心分離效果，給礦性質(zhì)（主要為給礦體積、給礦濃度、給礦初速度）的穩(wěn)定至關(guān)重要。因此，給礦一般需除渣后進入穩(wěn)壓（分礦）箱給至離心機。此外，CGLX離心機漂洗水要求濾除水中+0.5mm雜質(zhì)、精礦沖洗水要求濾除水中+0.2mm雜質(zhì)，水壓要求達到0.4～0.6Mpa。

3. Principle of Operation

Its  centrifugal drum rotates and slurry is fed onto the inside surface of the drum by a feeding  device. Minerals of different densities in the slurry suffer different moving  displacements under the combined actions of centrifugal field and film dilation.  Heavy minerals suffer bigger displacements than that of the light ones in the  film so that heavy minerals quickly settle down onto the drum and rotate  together with the drum as a centrifugally pressed thin concentrate layer; light  minerals, however, flow out of the drum to become tails along with the film  through discharging device outside the machine. When the feed is paused,  concentrate flush device starts to flush heavy minerals into discharging device to let them  become concentrates.

四、型號規(guī)格和主要參數(shù) Specifications and Parameters