Intermediate frequency furnace (primary smelting) is supply unit which change 50HZ AC into 300HZ to 20KHZ. And equipped with induction coil and compensating capacitor. Apply the heating plant of electromagnetic induction. It is used in smelting, heating of nonferrous metal. Like smelting pig iron, ordinary steel, stainless steel, tool steel, copper, aluminum, gold, silver, alloys, etc.

According the manufacturing of intermediate frequency furnace, normally it is duty & standby. Dust is less relatively. It adopts side suction trap cover, ring suction hood, roofs collecting cover, etc. Side suction trap cover and ring suction hood are poorly effective. Roofs collecting cover is high cost which is got known from factories in using. The rotate the top of suction cover our company designed which is approving. It is used in dozed of steel factory in fume treatment. Capturing and application effect are all got good comment.

Design specifications
Smoke dust arrestment rate ≥95%；
Smoke dust concentration ＜30mg/Nm3；

Countries and environment protection department establish the other relevant specifications and requirements.