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Keji fifth Road, Xi AN, Shaanxi
Product Name : Preheating arc furnace scrap preheating arc furnace
,Industrial furnace ,scrap preheating arc furnace, Steelmaking
furnace , Arc furnace , Industrial furnace ,Steelmaking furnace
,Arc Furnace steelmaking furnace, Preheating arc
furnace Preheating arc furnace Preheating arc
furnace Preheating arc furnace scrap preheating arc
furnace scrap preheating arc furnace Steelmaking furnace
Arc furnace Arc Furance Arc Furnace
Preheating Arc Furance Arc Furnace Arc
Furnace
Arc Furnace EAF Furnace EAF Furnace EAF Furnace
The vertical arc furnace changes the
tradition of rotating furnace lid to add scrap into the inside
furnace totally. It overcomes the shortages of traditional arc
furnace mentioned before and changes peoples traditional concept on
arc furnace. The way of adding scrap is using professional charge
basket or belt conveyor to add scrap from top into the closed
shaft. Preheating scrap is added into trough in the bottom shaft.
The trough is moved by vibrating-type cart. Specialized four-axis
type actuator is adopted to add scraps in the trough into the
inside furnace from the flank furnace body continuously. Thus,
discontinuous charging is changed to continuous charging into the
shaft. The whole molten pool operation of electric arc furnace is
realized.
High temperature flue gas enters
into the feed throat from furnace side going through gas duct to
shaft. Flue gas moves reversely with scrap steel. After preheating
scrap, flue gas is discharged into gas duct from the top shaft.
Flue gas enters into dedusting system through settling chamber. The
vertical shaft electric arc furnace not only absorbs part of good
ideas of Consteel furnace and vertical furnace but also overcomes
shortages. For example: It absorbs the idea of vibrating feed of
Consteel. But high temperature flue gas of Consteel can only pass
from the surface scrap, which is limited to preheat scrap steel.
Besides, the conveyor belt of scrap steel is so long
(*5**0m,
generally) that takes up big area of the workshop. We adopted the
idea of shaft preheating scrap. Meanwhile, we had a deeply
discussion and research on the problems appearing during the
operation of shaft furnace for a long time, such as scrap steel
bonded, hanging, leaking water, too much height of shaft,
increasing the cost of workshop, etc. We developed and designed new
furnace with proprietary intellectual property rights of our
company.
Outstanding merits of shaft arc
furnace
1) Scrap entered from top into shaft
in batches. High temperature flue gas and scrap flowed reversely.
Effect of scrap preheating is obvious. Due to the reduction of the
weight of each batch of scrap steel and the reduction of scraps
standing time on shaft finger. The possibility of bonded scrap
steel is eliminated. Meanwhile, shock of scrap steel on finger is
reduced.
2) Lower fingers in the furnace can
lift to avoid the damage caused by the falling of scrap
steel.
3) The charging basket enters closed
chamber firstly before it enters into shaft. Scrap steel is added
into shaft in fully sealed condition. So, when adding scrap, escape
of fume and dust is avoided. It is very helpful to environmental
protection.
4) Vibrating continuous feed and *0%
of remaining steel capacity is adopted to ensure the condition of
molten pool. Electric arc doesnt contact with materials of steel.
Electric arc is stable. Fluctuation and flicker of voltage is
sharply reduced. Noise is very low.
5) Because there is no direct
contact between electric arc and scrap steel, volatile substance is
reduced. The amount of dust is reduced because of filtration of
scrap to flue gas. It lays the foundation of dedusting system.
Industrial furnace
6) De to reduction of volatile
substance and the control of foaming slag, the iron recovery is
increased 1.**2.0%.
7) The rotary operation of furnace
lid is not to reduce subsidiary operation time. Radiation heat of
rotating furnace lid is avoided.
8) High impedance technology is
adopted to improve the secondary voltage and to reduce the
secondary current. Consumption of effective power is reduced **8%.
Weight of short net system is effectively
relieved.
9) Device configuration is concise
and reasonable. It overcomes the shortages such as taking up large
area, too much height of shaft plant. Thus, the cost of investment
is lowered.
国家: | China |
型号: | - |
离岸价格: | 获取最新报价 |
位置: | - |
最小订单价格: | - |
最小订单: | 1 Set |
包装细节: | - |
交货时间: | - |
供应能力: | - |
付款方式: | - |
產品組 : | - |