一、钢坯加热炉,钢坯感应加热炉,钢坯加热设备概述

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1、进出料机构、线圈和电源一体化设计，所需基建、工场占地和安装时间都较少。

2、并联式中频电源设计，AC电压靠二极管转化为DC电压，能量转换效率96％。

3、 输出功率可在10％－100％之间调节，所有功率范围都能维持0.96功率因素，谐波畸变污染少。

4、由于电源传输距离短、采用特殊隔热材料、串连式电源逆变测电流小电压高，中频单耗很低。 

5、动态监测串连谐振线圈负载电流变化情况，及时闭环控制电源输出功率，保证加热温度稳定

6、 其它丰富的检测、自诊断、报警功能和安全防护装置。

7、 关键元器件进口，采用高品质电气部件，国内组装；世界一流技术、本地化服务和价格。

8、根据坯料大小选配不同的加热频率，节省耗电量；线圈适应坯料直径范围宽1倍。

9、内嵌式的操作盘显示机器运行状态并供故障诊断之用；可以选择手动或人机界面操作方式。

10、 标配电源内置闭式内循环蒸馏水冷却系统，可以选配线圈内水系统或提供整套水冷解决方案。

11、可以选择气动或变频夹辊轮进料机构；快速抽取出料系统带破除粘结机构并可选配温度分拣系统。

二、钢坯参数及工艺要求

u 钢坯尺寸130x130 mm ，12 m、

u 钢坯头部温度: 表面 940 °C – 芯部 1030 °C – 平均 960 °C

u 钢坯尾部温度: 表面 925 °C – 芯部 985 °C – 平均 938 °C

u 从头到尾经过时间: 109 s –速度 0.11 m/s – 产量51.5 t/h

u 150x150 mm 12 m

u 钢坯头部温度: 表面949 °C –芯部1065 °C – 平均 975 °C

u 钢坯尾部温度: 表面933 °C – 芯部 1005 °C – 平均 948 °C

u 从头到尾经过时间: 145 s – 速度0.083 m/s – 产量51.8 t/h

u 要求第一架轧机入口头尾均等温度，最低 1050 °C现场工作条件：

三、 电源频率与功率的平面布置的确定:

u 根据坯料最大尺寸150x150 mm 12 m 经计算频率范围在1600Hz～600Hz范围内,本加热炉频率确定为1000Hz。

u 根据最大坯料150x150 mm 12 m 重量（2080公斤）和生产率(145秒/每件)计算所需加热功率最大为1500kw，此功率可以满足所有的钢坯加热及保温。

四、 设备范围与功能描述:

1.设备范围见下表

整流变压器是为中频电炉提供整流电源的专用变压器，该变压器（全紫铜芯油浸式）具有过载能力强，谐波电流少，冷却效果好等特点。

整流变压器技术参数：

1500kw 中频电源主要元器件型号及厂家

First, billet heating furnace, billet induction heating furnace, billet heating equipment overview

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1. The integrated design of the feeding and discharging mechanism, coil and power supply requires less infrastructure, workshop occupation and installation time.

2. Parallel intermediate frequency power supply design, AC voltage is converted into DC voltage by diode, and energy conversion efficiency is 96%.

3. The output power can be adjusted between 10% and 100%. All power ranges can maintain 0.96 power factor, and harmonic distortion is less polluted.

4, due to the short transmission distance of the power supply, the use of special insulation materials, series-connected power supply inverter measurement current small voltage high, medium frequency single consumption is very low.  

5. Dynamically monitor the change of the load current of the series resonant coil, and timely control the output power of the power supply to ensure the heating temperature is stable.

6, other rich detection, self-diagnosis, alarm function and safety protection device.

7, the import of key components, the use of high-quality electrical components, domestic assembly; world-class technology, localization services and prices.

8. According to the size of the blank, different heating frequency is selected to save power consumption; the coil is adapted to the diameter of the billet to be 1 times wider.

9. The embedded operation panel displays the running status of the machine and is used for fault diagnosis; manual or man-machine interface operation mode can be selected.

10, standard power supply built-in closed internal circulation distilled water cooling system, you can choose the inner water system of the coil or provide a complete set of water cooling solutions.

11. The pneumatic or variable frequency nip roller feeding mechanism can be selected; the quick extraction and discharging system can eliminate the bonding mechanism and can be equipped with a temperature sorting system.

Second , billet parameters and process requirements

2.1、Billet size 130x130 mm , 12 m , Billet head temperature: surface 940 °C – core 1030 °C – average 960 °C

2.2、 Billet tail temperature: Surface 925 °C – Core 985 °C – Average 938 °C

2.3、 Elapsed time from start to finish: 109 s – speed 0.11 m/s – output 51.5 t/h

2.4  150x150 mm 12 m

2.5、Billet head temperature: Surface 949 °C – Core 1065 °C – Average 975 °C

2.6、Billet tail temperature: Surface 933 °C – Core 1005 °C – Average 948 °C

2.7、  Elapsed time from start to finish: 145 s – speed 0.083 m/s – output 51.8 t/h

2.8、 The first mill is required to have the same temperature at the head and tail of the first mill, and the minimum working temperature is 1050 °C:

Third, Determination of the plane arrangement of the power frequency and power:

According to the maximum size of the billet 150x150 mm 12 m, the calculated frequency range is in the range of 1600 Hz to 600 Hz, and the frequency of the furnace is determined to be 1000 Hz.

Calculated according to the maximum billet 150x150 mm 12 m weight (2080 kg) and productivity (145 seconds / piece), the required heating power is up to 1500 kw, which can meet all billet heating and insulation.

Fourth, Device range and function description:

1. Equipment range is shown in the table below