Product Description

 

The main raw materials for smelting low-carbon ferrochromium using the electro silicothermic method include chromium ore, silicon chromium alloy, and lime. Some also come with fluorite and iron scales.

 

Chromium ore should be a dry, clean lump or concentrate with a lump size of less than 50mm; Containing Cr2O3>40%, Cr2O3/ Σ FeO>2.0, phosphorus content should not exceed 0.03%. Select silicon chromium alloys with different carbon contents based on the grade of the micro carbon engraved iron smelted. When smelting low-carbon iron with a carbon content of 0.06%, the carbon content of silicon chromium alloy should be less than 0.06%; When smelting submerged arc furnace for ferrochrome production with a carbon content of 0.03%, the carbon content of the silicon chromium alloy should be less than 0.03%. Silicon chromium alloy shall not contain slag, and the block size shall not exceed 15mm. Fragments less than 1mm shall be sieved out. Lime requires a CaO content greater than 88% and a phosphorus content less than 0.02%. Newly burned lime with a block size of 10-50mm should be used.

 

FEATURES

CHNZBTECH TECHNOLOGY FOR A MATURE 4000KVA FURNACE

CHNZBTECH Technology for a Mature 4000KVA Furnace

Productivity：35t/day;

 

Cooling water consumption: 150m³ / h, cooling water can be recycled,

 

Secondary current: 10500A,

 

4000KVA LCFC furnace fume amount: 90000m³/h, bag filter recommended;

 

HP electrode 400mm, consumption of each ton of alloy electrode is 16-18 kg.

 

Ton products raw material chrome ore 1.35t, siliconchrome 0.56t, lime 1.20t

 

Power consumption：2200-2800KW.H/t, depends on melting process;

 

SPECIFICATIONS

LOW CARBON FERROCHROME FURNACE SPECIFICATIONS

Grades and ingredients of some products in China

C	Grade		Chemical  %
		Cr			C	Si		P		S
		Range	Ⅰ	Ⅱ		Ⅰ	Ⅱ	Ⅰ	Ⅱ	Ⅰ	Ⅱ
			≥		≤
micro	FeCr65 C0.03	63.0～75.0			0.03	1.0		0.03		0.025
	FeCr55 C0.03		60.0	52.0	0.03	1.5	2.0	0.03	0.04	0.03
	FeCr65 C0.06	63.0～75.0			0.06	1.0		0.03		0.025
	FeCr55 C0.06		60.0	52.0	0.06	1.5	2.0	0.04	0.06	0.03
	FeCr65 C0.1	63.0～75.0			0.10	1.0		0.03		0.025
	FeCr55 C0.1		60.0	52.0	0.10	1.5	2.0	0.04	0.06	0.03
	FeCr65 C0.15	63.0～75.0			0.15	1.0		0.03		0.025
	FeCr55 C0.15		60.0	52.0	0.15	1.5	2.0	0.04	0.06	0.03
Low	FeCr65 C0.25	63.0～75.0			0.25	1.5		0.03		0.025
	FeCr55 C0.25		60.0	52.0	0.25	2.0	3.0	0.04	0.06	0.03	0.05
	FeCr65 C0.5	63.0～75.0			0.5	1.5		0.03		0.025
	FeCr55 C0.5		60.0	52.0	0.5	2.0	3.0	0.04	0.06	0.03	0.05

 

4000KVA Furnace for LCFC furnace

No.	Item	Unit	Data	Remark
1	TR capacity	KVA	4000	3phase
	Power factor	Cos	≮0.9
2	End products		LCFC	Low, micro
3	TPD	t	35
4	Tapping time	d	10
5	Max tapping	t	3.5
6	Electrode		Graphite	HP
7	Electrode diameter	mm	400
8	Water	M³/h	150	Circulation water

 

For more information about low carbon ferro chrome manufacturing process and low carbon ferrochrome production, please feel free to contact us!

 

There are many steel furnace manufacturers, but we are one of the best choices for you.