φ120(φ220、φ165)×1500

双辊筒电选机使用说明书

The Manual of Double Roller Electrical SorterMachine

φ120(φ220、φ165)×1500

双辊筒电选机使用说明书

The Manual of Double Roller Electrical SorterMachine

一、主要用途和性能（Mainapplicationand performance） 

1．用途（Application）

    φ120（φ220、φ165）×1500双辊筒电选机是电力选矿的主要设备之一。它广泛应用于分选钛、锆、金红石、独居石、铁、钨、钽铌、锡和其他稀有金属矿石。分选粒度为0.1～2毫米，表面温度小于1%的物料。在分选钛铁矿和锆英矿砂等矿物的工艺流程中常与中φ885单盘磁选机和永磁选机配合，效果很好。

φ120（φ220、φ165）×1500double Roller Electrical Sorter is one of the major equipments inelectricity mineral separation.It is widely used in sorting titanium, zirconium, rutile, monazite, iron, tungsten, tantalum, niobium, tin and other precious minerals. It can separatematerial which’s particle size is from 0.1 to 2 mm and surface temperature is less than 1% of itself. It often works well with the single-disc magnetic separator and permanent magnetic sorting machine in the process of sorting ilmenite, zircon ore and other minerals.

    该机体积小，结构简单，操作维护方便，安全可靠，分选效果好，产品在国内外供不应求，目前主要出口到越南、朝鲜、印尼等国家，深受客户的好评。

The machine hassmall size, simple structure, convenient operation and maintenance, safe, effective separation andso on. It has big amount of users in China, and they are mainly exported to Vietnam, Korea, Indonesia and other countries.

2、工作原理（working principle）

电选是利用矿物的导电性质不同而进行分选的一种物理选矿方法。在电场的作用下矿粒所受到电力和机械力（离心力、重力、阻力）作用，所产生的运动轨迹不同而使之分开，从而达到分选的目的。

The electrical sorting method uses the differences of conductive of different mineral. Under the influence of electric field, mineral particles are subject to electrical and mechanical forces (centrifugal force, gravity, drag) role, then they produce different tracks that make them to be separated. So we can achieve the purpose of sorting.

    当矿砂进入矿仓加热到40℃～60℃后，通过给矿槽喂入到转动中的辊筒(接地极)表面，随着辊筒旋转而进入电晕区，电晕电流使所有的矿粒(导体和非导体)均得到负电荷。导体矿粒由于与辊筒之间的接触电阻小，其电荷经辊筒很快地传走，在机械力的作用下，抛离辊筒，进入尾矿斗中（导电矿粒），非导电矿粒与辊筒之间接触电阻大，不易将电荷传走，由于电场力的作用吸附在辊筒表面，随着辊筒的转动带到辊筒后部，被卸毛刷刷下，收集到精矿斗中（非导电矿粒）。半导体矿粒或未能充分放电的导体矿粒落入中矿斗中（半导体矿粒）。

When the temperature heated to 40℃～60℃after entered  into the bin, the mineral particlesenter into the power corona areas with the rotation roller shafts along the rotating feed roller (Grounding Electrode) surface, Corona current makes all the mineral particles (conductors and non-conductors) obtain negative charge.Because of low contact resistance with therotating feed roller, the conductors’charges transfer by the roller away quickly. Under the action of mechanical forces,conductors escape away from the roller, and enter into the mineralhopper(conductors).At the same time,because of higher contact resistance with therotating feed roller, the non-conductors’charges couldn’t transfer by the roller away as quickly asconductors’.So they are forced in the roller surface owing to the role of electrostatic force. Withthe rotating feed roller, the non-conductors enter into theback of the roller, and are unloaded under brush. Then they are collected in the excellent hopper (non-conductors).At last the Semiconductor mineral particles or failed to fully discharge the conductor mineral particles enter into the middlehopper(semiconductor mineral particles).

二．φ120（φ220、φ165）×1500辊筒电选机构造

  (Thestructure of Roller Electrical Sorter)

φ120（φ220、φ165）×1500辊筒电选机，主要由给矿装置、接地辊筒、电极、电晕电极、偏转电极、分矿板、高压电子发生器等组成，见图2-1所示。

Double roller Electrical Sorter is formed mainly by ore equipment, grounded roller,electrode,corona electrode, deflection electrodes, pided mineral board, high voltage electron generator and so on. It is shown in thePicture of 2-1.

1.储矿装置(Ore reserve equipment)：内部设置电热元件，用以加热矿石。

Equipped with Heating element which is used to heat ore.

2.电晕电极（Corona electrode）：是一根0～0.5毫米的镍铬丝。电晕电极与辊筒电极之间的距离为20～40毫米，电晕电极与辊筒中心垂直线的夹角10°～25°，电压0～45千伏，负压输入。

Itis a 0～0.5 mm nickel-chromium wire.the distance between corona electrode androller electrode is 20 to 40 mm, andthe angle of their center vertical line is10°～25°. Thevoltage is 0 to 45 kV, and the inputisnegative.

  3．偏转电极（Deflection electrode）：是一根φ40毫米的铝管。偏转电级与辊筒中心垂直线的夹角30°～90°。

 It is a φ40 mm tube. The angle of center vertical line between deflection electrode androller electrode is30°～90°.

   4.接地辊筒（Grounded roller）：上下共两个，φ120（φ220、φ165）×1500毫米，用钢管制成，表面镀铬。上、下两个辊筒由一台调速电机经皮带传动，采用无级调速的方法，得到不同的转速。

There are two rollers (up and down),φ120 (φ220, φ165) × 1500 mm. They are made with steel and chrome plated.The two rollers are speeded by a motor via a belt drive. It can get a different speed by using variable speed.

三．φ120(φ220、φ165)×1500双辊筒电选机主要技术参数。（The main technical parameters of Double Roller Electrical Sorter）接地辊筒电极（Grounded  roller electrode）：

       数量（Quantity）：  2个 two

       直径（Diameter）：  120mm

       长度（Length）：    1500mm

  速度（Speed）：     120、160、200、300、400、500转/分

                          120,160,200,300,400,500 turn /min

电晕电极（Corona electrode）：直径0.3毫米，每个辊筒一根。

                    Thediameter is 0.3mm, and each roller has one.

偏转电极（Deflection electrode）：直径40毫米，每个辊筒一根。

                    Thediameter is 40mm, and each roller has one.

工作电压（Operating voltage）：0～45千伏，负压输入。

                    0～45kv, and the inputisnegative. 

物料粒度（Particle size of mineral）：不大于3毫米。Not more than 3mm.

处理能力（Processing ability）：0.5～3吨/小时。0.5～3 ton/hour.

传动功率（Transmission power）：1.1～1.5千瓦，调速电动机。

1.1～1.5kw,Speed variable motor.

加热耗电(Heating power)：Ｙ_ 4.5kw/△_ 13kw.

接地电阻(Grounding resistance)：小于10欧姆。Less than 10 Ohm.

物料加热方式（Material heating method）：手动/自动。Manual / Auto.

主机外形尺寸（Host dimensions）：                       

     长（Length）：2090mm

     宽（Width）：1020mm

     高（Height）：2855mm

主机重量（Hostweight）：1.9ton.

图2-1中的指示说明

（Direction to Figure2-1）：

1—电晕电极 (Corona electrode)；

2—偏转电极（Deflection electrode）；

3—储矿装置(Ore reserve equipment)；

4—溜矿板（mine slide board）；     

5—辊筒电极（roller electrode）；    

6—刷子（brush）；           

7—分矿调节板(sub-oreregulation board)；

8—产品漏斗（productfunnel）。        

                                      图2-1：双辊筒电选机示意图

                        Figure2-1: Sketch map ofElectrical Sorter

四．高压直流电源及电气控制

(High-voltage DC power supply and electrical control)

φ120（φ220、φ165）×1500双辊电选机采用单相全波整流电路。其整流及控制电路见图2—21。电流继电器的动作电流整定在1安培左右。时间继电器整定动作时间不大于1秒。限流电阻用来限制短路电流，保护高压变压器及高压整流管。微动WK装在调压变压器B1上，只有当调压变压器B1处于零位时，微动开关WK闭合，电路方能接通，行程开关CK安装在机门上，机门闭上时，CK闭合，电路才能接通，机门打开，高压立即切断。

Double Roller Electrical Sorter adopts single-phase full-wave rectifier circuit.The rectification and control circuit are shown in figure 2-21.Current relay action current is set in around 1 Amp and time relay operating time is less than 1 second.Limiting resistor is to limit current, protect the high voltage transformer and high voltage rectifier.MicroswitchWK is mounted on thevoltage regulating transformer B1.Only when the voltage regulating transformer B1 is zero, the micro switch WK can be closed and the circuit can be connected.CK trip switch is installed in the aircraft door, when the door closed ,CK closed, the circuit can be connected, when the door opened, high-pressure will be cut off immediately.

高压硅堆管整流原理图见图2—22。高压变压器灯丝变压器及高压整流管等浸泡在变压器油内，以提高绝缘强度并改善散热条件(见图中虚线框内所示)。整流管型号为E1－0.025/140，输出电压为0～45千伏。输出电流为50毫安，该电气控制器体积小、重量轻、操作方便。

High Voltage Silicon Stack Tube Rectifier Diagram is shown in Figure 2-22.High-voltage transformer, filament transformer high-voltage rectifier tube and so on are immersed in transformer oil in order toimprove the insulation strength and the cooling conditions (Within the dashed box shown in Figure).Therectifier model isE1－0.025/140,output voltage is0～45KV andoutput current is 50mA. This electric controller has small size, light weight and easy to operate.

五. φ120（φ220、φ165）×1500双辊电选机的操作、维护、安全要求。(Operation, maintenance, and safety requirements of Double Roller Electrical Sorter)

1.操作规程(Operating rules)

    (1)开机准备：开机前仔细检查电源是否正常，对地接线是安全完好(重要)，控制柜上各调压器是否调到零位，高压发生器线路完好，才能开机。

Boot preparation:Boot carefully before power is normal, ground wiring is safe and well (important), the control cabinet is transferred to the zero voltage regulator, and high voltage generator circuit is intact.

    (2)矿仓给料加热，把主令开关拨到自动位上，把温度控制仪调到所需的温度位置，开“快”加温或“慢”即可工作。当矿物升温到预定温度时自动转为“低”温，当矿物温度低于预定温度时，电源接通转为自动加温，如自动控温仪失灵，操作人员则可使用手动挡加温。

Heatingmaterialin ore bin, place  the main switch to automatic position, regulate the temperature controller to desired temperature, open the "fast" heat or "slow" to work. When the mineral heating to a predetermined temperature, it canautomatically becomes "low" temperature, when the temperature falls below a predetermined temperature, power supply will be connected to automatic heating. For example, when automatic temperature control device is malfunctioning, the operator can use a manual transmission heated

    (3)按马达起动按钮后，起动指示灯亮，慢慢转动马达调速器，调到预定转速，停机时要将调压器调到零位。

Start indicator can light after pressing the motor start button.Slowly turn motor speed controller and transfer to scheduled speed. Voltage regulator should be transferred to the zero when shutdown.

    (4)按高压起动按钮后，高压指示灯亮，慢慢转动高压调整器，调到适当的工作电压，停机后调压器应回零位置。

High pressure indicator can light afterpressing the high voltage start button.Slowly turnpressure regulatorand transfer to scheduledoperating voltage.Voltage regulator should be transferred to the zero when shutdown the machine.

    (5)拉动加温矿仓的下料开关，调到适当的给矿量(给矿速度)，本机即可进行正常工作。电选机的操作分选过程中直接影响选矿效果有如下因素：

Adjust the blanking switch of heating ore bin to appropriate ore (ore speed), then the machine can work properly. These are the following factors that can influence the sorting effect:

① 矿物的加热温度：在选锆英石、金红石时温度分别控制为40～60℃，60～80℃。实践证明：分选锆英石温度过高时，则精矿合格率低，金红石则相反。

Minerals heating temperature:When selected zircon, rutile, the temperature should be controlled at 40～60 ℃, 60～80 ℃.It is proved that if Zircon separation temperature is too high, then concentrate pass rate is low. Butthe rutile is opposite.

② 辊筒转速：分选锆英石和金红石时，电选机的辊筒转速分别调整为300～500转／分，250～300转／分，效果更好。

Roller speed: It is better that the speed is 300～500r／min，250～300r／minwhen selected zircon and rutile.

③ 电压：在电选机中，电压越高，电晕电荷电场越强。在分选过程中，矿物的粗细粒度影响很大。实践证明：细粒度矿石使用低电压，粗粒度矿石使用高电压。

Voltage:In electrical sorting machine, the higher the voltage, the stronger the electric field corona charge.Coarse grained minerals have agreat influence in the sorting process.It is proved thatfine-grained ore should use low voltage, and coarse-grained ore use high voltage.

2.维护(Maintenance)

    (1)正常运转的辊筒，由于矿物及毛毡刷互相磨擦，时间长会破坏辊筒表面的光度。影响选矿效果，应定期更换辊简。

When the roller is in normal operation,as the friction of minerals and felt brush, it will destroy the surface brightnessof roller after a long time. So we should replace the roller regularly in order to get a good ore selection.  

    (2)辊筒表面安装有一块约0．5～1毫米的胶皮，质地柔软，其作用是使矿粒和地极(辊筒表面)接触放电，其作用很重要。在长期高温环境及矿物的磨擦作用下，易变硬或破损，应定期更换。

There is a soft rubber about 0.5～1 mm on the surface of roller. The role is to make mineral particles and the earth (roll surface) contact with discharge.It is easy to harden or damage in the long-term high-temperature environment and friction of minerals, so it should be changed regularly.

    (3)羊毛毡：主要起刷矿作用。在使用中必须与辊筒表面接触均匀，不能对辊筒压得太紧，否则会影响辊筒的使用寿命，严重时会烧坏调速直流电机。

Wool felt: The main role is to brush ore. It must be uniform when contacted with roller surface.The roller cannot be held down too tightly, otherwise it will affect the life of the roller, in severe it can burn speed DC motor

    (4)高压发生器的保护：输出电压一般在12～25千伏之间调整，在使用中由于矿物的温度不均匀，加热时会产生水气现象，若电压过高，会产生火花(放电)，使设备内空间电场负荷紊乱。实践证明：过多的放电现象影响选别质量，同时还会烧坏高压发生器，如放电过频，应适当调低输出电压。

The protection of high voltage generator:Output voltage is generally between 12 to 25 KV.Because the heating temperature of mineral is uneven, it will produce the phenomenon of water vapor when heated.If the voltage is too high, it will produce spark (discharge),So that the electrostatic field within the load equipment become disorder.It is proved thatexcessive discharge can influence the quality of sorting.At the same time it will burn high-voltage generator. If thefrequency of discharge is too high, we should make the appropriate lower output voltage.

3.安全事项(Security issues)

由于电选机是在高电压下工作，为了正常生产与安全，除了满足上述要求外，还需注意以下几点：

As theElectrical Sorteris selected to work in the high voltage,in addition to meeting the above requirements,we must note the following to ensure safety.

(1)应经常检查电选机接地情况是否良好，一般接地电阻应小于10欧。

We should always check whetherelectrical sorterhas good grounding .In general grounding resistance should be less than 10 Ohm.

⑵主机与高压直流电源应该用单独支线分别接地干线，不得串联连接。

Host and high voltage DC power supply should be grounded with a separate branch lines, and they cannot be connected in series.

⑶高压电源断开后，高压电极上尚有残余电荷，必须用接地放电器将残余电荷放掉后方能与这些零部件接触式进行检修。

After the high voltage power supply disconnected,there are residual charges on the high voltage electrode. So theground discharger must let go of the residual charge before contacting with these parts for maintenance.

   ⑷应经常检查高压直流电源内电流继电器，时间继电器的整定值是否正确，控制是否灵敏。

We should always check the high voltage DC power supply within the current relay, time relay setting value is correct, control is sensitive.

⑸高压直流电源的绝缘油应定期取样进行耐压试验，若绝缘油的耐压强度小于3.5千伏／2.5毫米，须进行过滤或更换。

High voltage DC insulation oil pressure test should be conducted regularly sampled.If the compressive strength is less than 3.5 kV / 2.5 mm, it must be filtered or replaced.

⑹应尽量缩短高压电缆长度，电缆附近应力求干燥，运行时应尽量不与电缆接触。

The length of high-voltage cable should be as short as possible,cable in the vicinity should be dry, and cable should not be touched when it runs.

六、φ120(φ220、φ165)×1500双辊电选机配件和易损件

(Accessories and consumables of Double Roller Electrical Sorter)

主  要  配  件

Major accessories