Used Blast Furnace Centrifugal Fan

About Used Blast Furnace Centrifugal Fan

D Series blower is used to provide sufficient air for smelting blast furnace or Chemical industry, it is an important part of the blast furnace production.

This type blower inlet and outlet both are downward, the traditional two floors are used for the layout. The core unit of centrifugal blower, gear box and motor are arranged in the second floor, the control is located next to the machine train, which is easy to observe and operate. The lube oil station, valves, inlet & outlet valves are arranged in the first floor because of high discharge temperature, which need very good ventilation condition.

This type blower adopts the most advanced high efficient three-dimensional centrifugal blower Design and manufacturing technology. The integral machine train is featured by good quality and reliable condition and the efficiency is 8-10% higher than normal two-dimensional design.

The three space torsional blades, impeller disc and main shaft for the whole impeller of rotor is made up of high strength alloy steel, the impeller shall be made integral heat treatment and process quality conditioning after welding, which can guarantee the impeller whole crystal organization precision and also eliminate stress after welding, thus greatly increase the safety and reliability of impeller. Each impeller shall be done over-speed test with 15% working speed and the whole rotor shall be done with high precise dynamic balance test to guarantee stable and reliable operation.

Both the casing and diaphragm use resin sand casting, with higher density and bright appearance, each joint surface is sealed and reliable after precision machine and scraping.

Scope of supply:

Item	Name	Contains
1	Fan	Three-dimensional impeller rotor, casing, base frame, diaphragms and sealing, bearing and bearing base, coupling and protection hood, gas & oil port counter-flange, Coupling and shield for gearbox and fan, Coupling and shield for gearbox and motor, Diaphragm coupling,
2	Oil Lubrication station	Oil pump, cooler, Pressure gauge etc
3	Overhead oil tank
4	Gearbox	Bearing and base frame, pairs of gear and bearing pad with hard gear surface.
5	Whole Air valves and actuation mechanism	Inlet electric control valve,Outlet baffle check valve,Outlet electric blow valve,Electric blow-off valve,Anti-surge valve
6	Inlet & outlet compensator
7	Anti-surge control and operation status monitoring system	Primary and secondary instrument, anti-surge automatic control system, computer monitoring system, instrument panel, anti-surge electric control valve etc..
8	Self cleaning inlet air filter
9	Blow-off silencer
10	Motor	6.6kv,11kv
11	Control cabinet with soft starter	High pressure run cabinet,star cabinet,soft starter, Work station

Robust Construction and Performance

Engineered for heavy industrial use, this centrifugal fan features durable heavy-duty steel housing and a backward curved mild steel impeller. Its direct coupling drive type ensures efficient power transfer, while the fixed installation design makes it reliable for continuous operation in high-temperature metallurgical settings up to 250C.


Industrial-Grade Airflow and Efficiency

Delivering an impressive air volume between 9,000-14,000 m3/h, the fan efficiently manages ventilation needs in blast furnaces and other industrial processes. The cylindrical shape, 700 mm inlet, and 600 mm outlet facilitate optimal airflow with a pressure capability of 1320 Pa and moderate noise output, supporting safe and productive work environments.