Normal operation of an electric furnace produces heavy fumes in great volume which escape through the electrode ports in the roof and accumulate in the furnace shop since the volume is beyond the capacity of usual ventilating means. This produces almost intolerable working conditions in the shop, particularly during certain portions of the refining cycle.
This requires an electric furnace dust collector. According to the characteristics of fine dust and sticky dust generated by the electric furnace, in order to ensure the normal operation of the bag filter under a suitable resistance level, the electric furnace dust collector is required to have a strong cleaning ability.
The medium frequency electric furnace collecting hood is used extensively in the production of non-ferrous copper and its alloys for melting. The main components of the charge added to the induction furnace are electrolytic copper, zinc, aluminium, titanium and tin, etc. The charge usually also contains oil, dust and oxide, and the charge produces a large amount of soot during the melting of the metal, de-slagging spheroidisation and copper water discharge, and the soot can also contain oxides of zinc or tin.
Precautions for the use of electric furnace collecting hood
(1) Attention should be paid to the position of the electric furnace collecting hood installation and the direction of the exhaust. Study the mechanism of dust generation, consider the direction of dispersion, speed and critical point, and the mouth of the local dust hood of the electric furnace dust collector should be aligned with the direction of dust dispersion. If side or top cover type dust hoods are used, make it impossible for the operator to access the opening between the source of pollution and the air collection hood.
(2) The electric furnace collecting hood should be as close as possible to the source of contamination. To prevent large amounts of dust gas from escaping or large amounts of outside air from entering. As a rule, the pollution source can be enclosed in a hermetically sealed, enclosure type, etc. If this is an obstacle to operation, the dust collection hood can be mounted on the side or on top. Gases denser than air can be attracted below.
(3) Control the wind speed. The smallest wind speed required to allow harmful substances to flow into the opening of the dust collection hood from the farther point of the dispersion boundary is called the control wind speed.
(4) The form of airflow around the electric furnace collecting hood. If the airflow around the trapping point moves rapidly, it has a greater impact on the control air speed. The control air velocity will therefore decrease, so that the dust hood hood will lose its normal collecting effect.
Electric furnace collecting hood manufacturer recommendation
There is an excellent electric furnace collecting hood manufacturer, Yushun Metallurgical Co., Ltd, which sells high-quality electric furnace collecting hood. If you want to know more about it, or are interested in our products, you can visit the website to contact us.