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    Shaanxi Chengda Industrial Furnace Co., Ltd. completed the commissioning of electric arc furnace, the workers carefully cooperated with Chengda engineers to learn and operate the equipment, showing the deep friendship and excellent cooperation between the people of China and Pakistan.
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    【 Warm congratulations 】 Shaanxi Chengda Industrial Furnace Manufacturing Company in South Korea, North Chungcheong County precious metal smelting furnace equipment installation and careful manufacturing and strict commissioning, looking forward to the future in more fields to achieve mutually beneficial win-win cooperation!
Contact Person : Du
Phone Number :  13991381852

33000KVA 1250mm Electrode Semi Closed Type Large Submerged Arc Furnace for Silicon Metal Smelting Production Line

Place of Origin Shaanxi, China
Brand Name Shaanxi Chengda
Certification ISO 9001:2015
Model Number CD-SAF-33000
Minimum Order Quantity 1 Set
Price USD 250,000 - 1,200,000 / Set (negotiable by configuration)
Packaging Details Main shell in seaworthy frame with anti-rust coating, electrodes and copper bus bars in export crates, accessories palletized with packing list
Delivery Time 2~3 months
Payment Terms T/T,L/C,D/A,Western Union,
Supply Ability 8 complete submerged arc furnace lines per year
Product Details
Rated Capacity 33000 KVA Furnace Type Semi-closed Submerged Arc Furnace, 3 Electrodes
Electrode Diameter 1250 Mm, 3 Pieces, Self-baking Secondary Voltage 200-260 V, 9 Taps
Furnace Shell Diameter 10200 Mm Annual Output 40000-50000 T/a
Specific Power Consumption 11000-12500 KWh/t Off-gas Oxygen Below 2%
Cooling Water Flow 520 M3/h At 0.4 MPa Warranty 12 Months
Highlight

33000KVA submerged arc furnace

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1250mm electrode semi closed furnace

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silicon metal smelting production line

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Product Description

33000KVA Large Submerged Arc Furnace for Silicon Metal Smelting

This 33000KVA large submerged arc furnace targets industrial silicon metal production with a stable, high-load operation profile. Three 1250mm self-baking electrodes run at 200-260 V secondary voltage, and the water-cooled semi-closed hood keeps the charge surface sealed so that silicon metal losses in the off-gas stay low. A rotating charging system and an enlarged furnace shell diameter shorten the tapping cycle and let the furnace run at full load for long campaigns.

Why a Large Submerged Arc Furnace

  • Large shell for long campaigns: 10,200mm shell diameter and 2,900mm bath depth spread the reaction zone, so a single campaign between major repairs runs longer.
  • Low silicon loss: semi-closed water-cooled hood with controlled negative pressure holds off-gas oxygen below 2% and reduces silicon metal escaping as micro-silica dust.
  • Stable 33MVA load: the furnace transformer with 9 voltage taps keeps the operating load flat, which suits grid dispatch and improves power factor.
  • Uniform charging: rotating distributor and three-point feeding avoid charge segregation and keep the electrode holes open for gas escape.
  • Easier maintenance: replaceable water-cooled wall panels, accessible bustle ring and quick-change pressure ring shorten planned downtime.

Technical Parameters

ParameterValue
Rated transformer capacity33000 KVA
Primary voltage35 kV / 110 kV
Secondary voltage200-260 V, 3-phase, 9 taps
Electrode diameter1250 mm self-baking electrode, 3 pieces
Furnace shell diameter10,200 mm
Bath depth2,900 mm
Tapping temperature1650-1750 °C
Specific power consumption11,000-12,500 kWh/t
Annual output40,000-50,000 t/a
Off-gas oxygen content< 2%
Cooling water flow520 m³/h at 0.4 MPa

Scope of Supply

  • Furnace transformer with on-load tap changer and short net
  • Furnace shell, replaceable water-cooled wall panels and semi-closed hood
  • Electrode holder, pressure ring, slipping and lifting gear
  • Rotating charging distributor and three-point feeding chute
  • Hydraulic tilting or tapping system with casting equipment
  • Dust collection interface and off-gas duct
  • PLC cabinet, HMI, instrument and interlock package

Delivery and Service

  • Feasibility study support for capacity and power supply matching
  • Complete set of construction and installation drawings
  • Commissioning and first tapping with our engineer on site
  • 12 months warranty and long term consumable supply

Typical Applications

Industrial silicon metal plants, silicon material projects for aluminium and chemical downstream users, and existing smelters that upgrade from several 12,500KVA furnaces to one large 33MVA unit for lower power cost per ton.

Send us your target capacity (kVA), raw material specification and site power conditions, and our engineering team will return a matched furnace configuration, layout drawing and budget quotation within 3 working days.