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LP600型盤式離心選金機 Centrifugal gold washing mac

離心選金機

一、工作原理

盤式離心選金機屬重選設備,機器主體是一個鍋狀園盤,由中空軸支撐和動力帶動旋轉。礦漿經砂泵輸送到選盤中心處,礦粒同時受到重力和慣性離心力作用。在礦粒沿盤面中心向上運動的過程中,當角度大于450時,沿坡度方向離心力分力逐漸變小,重力分力逐漸增大,當上升到某一高度時,二力達到平衡,在平衡點附近容易形成重砂沉積層。尾礦從盤上部邊緣排出,精礦在停止給礦后(停機)加水沖洗由中空軸排出。

二、用途

本機器主體結構參照澳大利亞礦產公司克努森KNUDSEN淘金技術參數,主要淘洗 -4mm以下沙金,可回收15um以上的自然金粒,操作時,中心內孔用塞封堵,定期排發收集。工作時邊加礦邊加水,可間斷作業或連續作業。旋轉方向為逆時針轉(見示意箭頭)。轉速為70-110r·p·m。礦漿固液比為1/4-2/3。本機器可單機電動作業,多臺組合作業或腳踏式(無電源時)作業。

三、技術參數

型號規格單位LP600
圓盤直徑mm600
中心轉速r·p·m70-110
給礦粒度mm-4
給礦濃度 %20-40
補加水m3/h0.8-2
電機功率kw0.55
機器質量kg80

四、操作事項:

1、據電機接盒上示意圖接線,確定轉盤工作方向(逆向針轉)。

2、接通電源試車,無異常聲音,即可加入礦料工作,定期排放收集精礦。

3、每工作十天,定期給減速器注入機油。詳見注油孔及油位。

4、嚴防電機周圍礦漿或水分滲透入。

I. Working principle:

Tray Type Centrifugal Gold Separation Machine as heavy medium separation appliance, is supported with hollow shaft and driven by power, with its major part being of cauldron disk. Slurry is transferred via slurry pump to the separation disk center where ore grains are acted by both gravity and inertial centrifuging force. During the course of movement by the ore grains upwards along the center of disk surface, when angle is greater than 45 degrees, the centrifugal component force in the direction of slope will gradually decrease while gravity component force will gradually increase. When it is up to a certain level, the two forces will reach balance, and near the point of balance easily develops a heavy mineral sediment layer. Tailings are discharged from edge at the upper disk, and concentrates after stop of feeding ( shut-down), are washed with water before being drained by hollow shaft.

II. Application

The major structure of the machine follows the technical data about gold washing from KNUDSEN, Australian mining company. The machine is primarily applied for washing and separating placer gold at a size of minus 4mm and is capable of recovering natural gold grains at sizes of over 15 um. In operation, inner hole of the center is blocked using plug with its drainage and collection at a regular basis. It can be operated intermittently or continuously, with the ore feeding and water adding simultaneously. The rotation direction is anti-clock( as indicated by arrow) at a speed of 70-110 r/pm. Ratio between solid and liquid for slurry is 1/4-2/3. The machine can be operated by power individually and multi-machines also can be operational in a combined or pedal manner ( without power supply ).

III. Technical Data

ModelUnitLP600
Disk diametermm600
Central revolution speedr.p.m70-110
Feed sizemm-4
Feed concentration%20-40
Makeup waterm3/h0.8-2
Motor powerkw0.55
Quality of machinekg80

IV. Items of operation

1.  Make wiring as indicated in the Junction Box of motor and define the working direction of the disk

2.  Energize for commissioning, add ore feed when no abnormal noise is heard, and discharge and reclaim concentrates regularly.

3.  Add engine oil to speed reducer periodically at an interval of every 10 days as per oil injection hole and oil level.

4.  Prevent motor from being infiltrated by its surrounding slurry or water moisture.

V The machine has been applied in batches in amphibious mobile gold ore washing ground owned by a mining company in Mongolia

gold concentrator (43).jpg

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