The ore used for smelting needs to be sintered before smelting. The sintering machine needs to be used for sintering, while the sintering furnace needs to use the flue gas main exhaust fan and cooling fan. The centrifugal blower has become a It has become the mainstream choice for the main exhaust fan used in the sintering plant.
According to the different sections of the fan in the sintering system, they are respectively called: sintering main exhaust fan, sintering ring cooling/cooling fan, head/tail dust removal fan, sintering machine ignition and combustion fan, etc.
The sintering blower is the main exhaust fan for the sintering machine, and its power consumption accounts for more than 50% of the total power consumption of the sintering plant. And because the conveying medium is sintering flue gas, which has a large dust content, improving efficiency, reducing energy consumption, strengthening wear-resistant measures, and increasing service life are still the main technical issues of sintering centrifugal blowers.
The air volume of the sintering blower depends on the sintering area of the sintering machine; the pressure depends on the thickness of the sintering material layer.
At present, the large-scale sintering machine (1000 m2 sintering machine can be produced) and the thick material layer (up to 700mm) have prompted the development of sintering centrifugal blowers in the direction of large air volume and high negative pressure. The maximum flow rate of the sintered centrifugal blower is 23000m3/min, the maximum pressure is 19620Pa, and the maximum power is 14500kW.
Due to the limitation of factors such as manufacturing process conditions and transportation conditions, the sintering induced draft fans for extra-large sintering machines often adopt the form of double-machine parallel connection.
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