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    标题:中频熔铝炉中频熔铝炉选购方法,中频熔铝炉出售

    关键词:中频熔铝炉

    描述:中频熔铝炉技术选型方法中频熔铝炉配置,中频熔铝炉维护及保养指南,中频熔铝炉安全操作指南。

    中频熔铝炉

    一,概述:中频熔铝炉在铝行业的应用较为广泛, 中频熔铝炉比工频炉熔铝损耗小;中频熔铝炉比电阻炉效率高; 中频熔铝炉可以通过提高功率来增加熔化率; 同样功率下中频熔铝炉比工频炉噪声小 , 烟尘污染少。

    二,中频熔铝炉的组成:整套中频电源频率2500HZ,补偿电容,炉体及水冷电缆、减速机。

     

    三,中频熔铝炉技术参数配置汇总 

     

    型   号

    中频熔铝炉技术参数汇总

    额定容量
    (T)

    额定功率
    (KW)

    工作温度
    (℃)

    熔化率
    (T/H)

    频率
    (Hz)

    GWJTZ0.3-160-1

    0.3

    160

    700

    0.25

    1000

    GWJTZ0.5-250-1

    0.5

    250

    700

    0.395

    1000

    GWJTZ1.0-350-1

    0.8

    350

    700

    0.59

    1000

    GWJTZ1.0-500-1

    1.0

    500

    700

    0.89

    1000

    GWJTZ1.6-750-1

    1.6

    750

    700

    1.38

    1000

    GWJTZ3.2-1500-0.5

    3.2

    1500

    700

    2.38

    1000

    GWJTZ5.0-2500-0.35

    5

    2500

    700

    4

    1000

    四,中频熔铝炉与中频熔铁炉不同点

    铝为非磁性材料 ,  在整个熔炼过程中 , 磁场极易发散 ,  故磁轭布置要合理。首先 , 磁轭面积必须足够大 , 尽可能长 , 才能保证感应器轴向及径向磁场有足够的通边。如果感应器是两段线圈 (并联反绕) ,  则要考虑中间接缝处的漏磁问题。其次 , 感应器匝间距离不易过大 , 8-12mm 为宜。

    五,中频熔铝炉衬选择

    中频铝炉由于频率高 , 铝液震动频率高 , 加之铝的自身特性 , 其穿透性特强 , 所以炉衬是非常关键的。应选用铝炉专用炉衬 , 一般好的炉衬可使用 300 以上炉次。铝熔化时 , 产生的涡流很大。熔化初期 , 由于炉料无规则分布 , 致使电源遭受强大冲击 , 很容易烧坏可控硅 , 所以制作中频电源时 , 要对其耐冲击性加强考虑。

    六,中频熔铝炉的优点汇总

    中频熔铝炉在铝行业的应用较为广泛。

    1. 中频熔铝炉比工频炉熔铝损耗小;

    2. 中频熔铝炉比电阻炉效率高;

    3. 中频熔铝炉可以通过提高功率来增加熔化率;

    4. 同样功率下中频熔铝炉比工频炉噪声小,烟尘污染少。

      正因为中频熔铝炉有以上诸多优点,它才被广泛应用。

      七,中频熔铝炉感应加热过程的能量损耗汇总:

       1、 感应器内流过电流引起的发热损耗:该损耗被冷却水带走。这部分损耗是系统的主要损耗,与感应器结构、炉料物理性能、加热频率相关,常用“电效率”描述此项损耗。 电效率为传输到被加热工件的能量与感应器从电源得到的能量之比。

       2、热损耗:被加热工件向周围散热引起的损耗,这部分损耗仅次于感应器损耗。常用“热效率”描述此项损耗,热效率为使工件加热的净热量与工件从感应线圈得到的总热量之比。

      3、传输损耗:从变频电源向负载供电的电缆、母线引起的损耗,一般在2%7%

      4、变换损耗:电源柜内的变流元件、滤波电感、换流电感、补偿电容的损耗,一般在2%5%

      6中频熔铝炉效率为 62%,热效率能达到75%,变频损耗为3%,传输损耗为 5%

      八,中频熔铝炉安全操作指南 

      1开机前,首先检查水、气、电是否接通,接通后即可进行下列操作;

      2操作人员必须配制相应的绝缘鞋,手套等。

      3操作人员必须具备相应的电工知识。

      4设备检修前,必须先拉掉电闸确定断开电源后,再进行放电处理,然后挂上检修牌后,一再检修,如必须带电操作,必须两人以上在场,但绝不允许带高压操作。

      5开机前,首先确定水路正常,设备各部分正常才允许开机。

      6先开一档灯丝,五分钟后再开二档灯丝,再五分钟后,才可送高压。

      7送高压前,确定输出调节电位器处于最小位置,然后再送高压,并把输出电压,调至工作时的电压。

      8确定有工件以后,就可按加热按钮,使设备工作,但绝不允许空载加热。

      9如工作时,设备出现异常情况,必须马上断开电源,查清楚原因以后,再工作。

      10设备工作完毕后,先断开加热,再断开高压,然后关灯丝,断开电源。

      11设备停止工作以后,必须等五分钟以后,再断开水源。

      12设备工作期间,如临时有事必须离开,则须做到,人离机停,绝不允许,无人时机器还在工作。

      九,中频熔铝炉维护及保养指南  

      1正确的维护和保养,可以保证设备有良好的工作性能及长久的使用寿命。

      2 每班工作完毕后对设备进行除水:方法是用气枪将水珠吹干,将工作台面的灰尘和杂物清理干净,保证设备干净、整洁.

      3水冷却的要求:水冷却对感应加热设备极其重要,水质不好,将导致设备内部生锈结垢、管路堵塞,将直接导致设备损坏,无法正常工作。

      4 线圈在没有通水的情况下严禁加热,否则线圈会烧坏、电源也会因空载而烧坏。

      5 推荐使用的冷却水:蒸馏水——软化水——纯净水——经过滤的自来水

      6 严禁使用的冷却水:海水、盐水、未经过滤的河水和井水。

      7推荐供水方式:封闭循环供水+水冷却热交换器。

      8 输入电压三相380V(三相五线制供电)。

      9 机器通电后,禁止触摸电源、变压器所有输入输出接头,以免造成安全事故。

      10维修设备时必须关闭设备的空气开关,以及外部的总开关,停止输送水设备。

      11应避免设备置于阳光暴晒、雨淋、潮湿等环境下。

      12 设备的维修应由专业人员进行。

      13 没有关闭控制箱门时,不可开启电源,以避免出现安全事故。

      14当工作完成后首先关闭控制箱电源,15分钟后才能停止供水,以免损害电源

      www.firstfurnace.com

      www.minglusc.com

       

      Title: Medium frequency aluminum melting furnace - medium frequency melting aluminum furnace purchase method, medium frequency aluminum melting furnace for sale

    Keywords: medium frequency aluminum melting furnace

    Description: Medium frequency melting aluminum furnace technology selection method , medium frequency melting aluminum furnace configuration, medium frequency melting aluminum furnace maintenance and maintenance guide , medium frequency melting aluminum furnace safety operation guide.

    Medium frequency aluminum melting furnace

    I. Overview: The medium frequency aluminum melting furnace is widely used in the aluminum industry . The medium frequency melting aluminum furnace has less loss of melting aluminum than the power frequency furnace; the medium frequency melting aluminum furnace is more efficient than the electric resistance furnace; the medium frequency melting aluminum furnace can increase the melting by increasing the power. Rate; under the same power, the medium frequency melting aluminum furnace has less noise than the power frequency furnace, and the smoke pollution is less.

    Second, the composition of the medium frequency melting aluminum furnace : the whole set of intermediate frequency power supply frequency 2500HZ , compensation capacitor, furnace body and water-cooled cable, reducer.

    Third, the intermediate frequency melting aluminum furnace technical parameters configuration summary

     

    model

    Summary of technical parameters of medium frequency aluminum melting furnace

    Rated Capacity 
    (T)

    rated power 
    (KW)

    Operating temperature
    (°C)

    Melting rate 
    (T/H)

    frequency 
    (Hz)

    GWJTZ0.3-160-1

    0.3

    160

    700

    0.25

    1000

    GWJTZ0.5-250-1

    0.5

    250

    700

    0.395

    1000

    GWJTZ1.0-350-1

    0.8

    350

    700

    0.59

    1000

    GWJTZ1.0-500-1

    1.0

    500

    700

    0.89

    1000

    GWJTZ1.6-750-1

    1.6

    750

    700

    1.38

    1000

    GWJTZ3.2-1500-0.5

    3.2

    1500

    700

    2.38

    1000

    GWJTZ5.0-2500-0.35

    5

    2500

    700

    4

    1000

    Fourth, the intermediate frequency melting aluminum furnace is different from the medium frequency melting iron furnace

    Aluminum is a non-magnetic material . During the entire melting process , the magnetic field is very easy to diverge , so the yoke arrangement should be reasonable. First, the area of the yoke must be large enough, as long as possible, in order to ensure axial and radial magnetic field sensor through a sufficient edge. If the inductor is a two-stage coil ( parallel rewind ), consider the magnetic flux leakage problem at the indirect slot. Secondly , the distance between the sensors is not too large , and it is suitable for 8 - 12mm .

    Five, medium frequency melting aluminum lining selection

    IF aluminum furnace due to the high frequency, high frequency vibration of molten aluminum, the combined aluminum own characteristics, which is particularly strong penetration, the lining is critical. A special furnace lining for aluminum furnaces should be used . Generally, a good furnace lining can use more than 300 heats.When aluminum is melted, the eddy current generated is large. In the early stage of melting, due to the irregular distribution of the charge, the power supply is subjected to a strong impact, and the thyristor is easily burned out. Therefore, when manufacturing the intermediate frequency power supply, the impact resistance should be considered.

    Six, the summary of the advantages of the intermediate frequency aluminum melting furnace

    Medium frequency aluminum melting furnaces are widely used in the aluminum industry.

    1, aluminum melting furnace IF than the frequency loss is small aluminum melting furnace;

    2 , medium frequency aluminum melting furnace is more efficient than electric resistance furnace ;

    3 , medium frequency aluminum melting furnace can increase the melting rate by increasing the power ;

    4, the same intermediate frequency than the frequency melting furnace at the furnace noise power, less dust pollution.

    Because the medium frequency aluminum melting furnace has many advantages , it is widely used.

    Seven, the energy loss summary of the induction heating process of the intermediate frequency aluminum melting furnace:

    1. Heat loss due to current flowing through the inductor: This loss is carried away by the cooling water. This part of the loss is the main loss of the system, which is related to the structure of the inductor, the physical properties of the charge, and the heating frequency. The "electrical efficiency" is commonly used to describe this loss. Electrical efficiency is the ratio of the energy delivered to the heated workpiece to the energy obtained by the inductor from the power source.

    2 , heat loss: the loss caused by the heat of the heated workpiece to the surrounding, this part of the loss is second only to the inductor loss. The commonly used "thermal efficiency" describes the loss, which is the ratio of the net heat that heats the workpiece to the total heat that the workpiece receives from the induction coil.

    3. Transmission loss: The loss caused by the cable and busbar from the variable frequency power supply to the load is generally 2% to 7% .

    4 , conversion loss: the converter components in the power cabinet, filter inductors, converter inductors, compensation capacitor losses, generally 2% ~ 5% .

    6, intermediate frequency melting furnace efficiency of 62%, the thermal efficiency can reach 75% conversion loss is 3%, the transmission loss is 5%.

    Eight, medium frequency aluminum melting furnace safety operation guide

    1, before starting, first check the water, gas, electricity is turned on, the following operations can be carried out after turning;

    2 , the operator must prepare the corresponding insulation shoes, gloves and so on.

    3, the operator must have the appropriate electrical knowledge.

    4, before the equipment maintenance must pull out the gates is determined after the power off, then discharge treatment, and then hang up after the access card, repeated maintenance, such as the need charging operation, more than two must be present, but never allow high pressure operation with .

    5 , before starting, first determine that the waterway is normal, all parts of the equipment are normal to allow booting.

    6, a first open filament speed, second speed for five minutes apart filament, then after five minutes, before the high pressure feed.

    7, before sending a high pressure, the output is determined at a minimum position adjustment potentiometer, and then sending a high pressure, and the voltage of the output voltage to adjust the work.

    8, after the workpiece is determined, the heating button press can make the device work, but never allow the heating load.

    9, such as at work, the device abnormal situation, the power supply must be disconnected immediately after the check clarity reasons, work.

    10, after the work is completed the device, disconnect the heating, and then disconnect the high pressure, and then the filament off the power supply.

    11, after the device stops working, you must wait five minutes later, then disconnect the water.

    12, during a working device, such as a temporary emergency must leave, it shall be done, people from the machine stopped, must not be allowed, when no one machine is still working.

    Nine, medium frequency aluminum melting furnace maintenance and maintenance guide

    1, proper care and maintenance, it can ensure that equipment has good performance and long service life.

    2, class work after completion of the device in addition to water: method is to use an air gun to dry the water droplets, the work surface dust and debris clean, ensure clean equipment, clean.

    3 , water cooling requirements: water cooling is extremely important for induction heating equipment, poor water quality, will lead to rust and scale inside the equipment, pipeline blockage, will directly lead to equipment damage, can not work properly.

    4, the coil is prohibited in the case where no through water heating, otherwise the coil will burn, because the no-load power will burn.

    5 , recommended cooling water: distilled water - softened water - pure water - filtered tap water

    6. Cooling water that is strictly prohibited: seawater, salt water, unfiltered river water and well water.

    7, the recommended water supply: water + closed loop water cooling heat exchanger.

    8, a three-phase input voltage 380V (three-phase five-wire power supply).

    9, after the machine is powered Do not touch the power transformer all input and output connectors, so as to avoid accidents.

    10, the air must turn off the switching device, the main switch and external maintenance equipment, stopping the flow of water equipment.

    11, the device should be placed to avoid sun exposure, rain, moisture and other environmental.

    12 , equipment maintenance should be carried out by professionals.

    13. When the control box door is not closed , do not turn on the power to avoid a safety accident.

    14, when the work is completed first turn off the power control box, to stop the water after 15 minutes, so as not to damage the power supply


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