Vacuum crucible is a kind of transfer equipment commonly used in metallurgical industry. It is a larger sealed container made of steel shell lined with refractory material. As liquid metal inside is high temperature, the lining of the vacuum crucible needs to be built with refractory material. The service life of the refractory layer is generally six months to one year, and it needs to be re-laid regularly. For safety reasons, the refractory layer should be fully dried before use.

The traditional preheating method of crucible adopts the AE rod heating, which has a long heating time and uneven heating, which greatly affects the service life of crucible and increases the maintenance cost of crucible in electrolytic aluminum plant. Coupled with the increasingly serious environmental problems, the electrolytic aluminum plants pay more and more attention to energy saving and emission reduction equipment. Jingwei Technology designed and developed a new type of preheating device for crucible in view of the existing problems.

Compared with the traditional heating method, this device is more environmentally friendly, more uniform heating, more convenient operation, more scientific heating and more accurate temperature control. The control system adopts high-precision temperature control system, which can preset the heating curve in advance, collect the temperature inside the vacuum crucible in real time, and control the output power of the power regulator through the difference between the real-time temperature and the set temperature to adjust the rate of heating, and the whole heating process is full-automatic heating.

The heating time will be prompted in time when it reaches the predetermined time, and the temperature abnormality in the heating process will also be alarmed. The use of new equipment can effectively improve the preheating effect of crucible, prolong the service life of crucible. And it can also greatly reduce the intensity of manual work, saving labor and material costs.

JW-610 series crucible preheater can be divided into two types according to the form of energy: JW-6101 type gas crucible preheater, JW-6102 type electric heating crucible preheater. They can adapt to the actual needs of different manufacturers.

JW-610 series crucible preheater has been put into application in many electrolytic aluminum enterprises, saving a lot of labor and material costs.