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Submerged electric arc furnace is a kind of industrial furnace which consumes much power. Full set equipment mainly consists of furnace shell, fume hoods, lining, short net, cooling system, exhaust system, de-dusting system, electrode shell, electrode lifting system, loading and unloading system, electrode holder, arc burner, hydraulic systems, submerged electric arc furnace transformer and various of electrical equipment.SR Submerged Electric Arc Furnace
Product usage The Submerged Arc Furnace is mainly used for Producing ferroalloy (including ferrotungsten, high carbon-ferromanganese, high carbon silicon iron, high-carbon Cr, Nickel Iron Alloy) and Silicon, calcium carbide, corundum, Yellow Phosphorous, etc. Main Features: It can be divided into three kinds according to mode of power supply: 1) AC Submerged Arc Furnace 2) DC Submerged Arc Furnace 3) Low-frequency Submerged Arc FurnaceSR SAF
Ferroalloy refining furnace is the main equipment for smelting ferroalloy. Ferroalloy electric furnaces are divided into two categories: reduction electric furnaces and refining electric furnaces.Ferroalloy Refining Furnace
9000KVA Ferrosilicon Submerged Arc Furnace Technology Low voltage dynamic reactive power compensation technology Submerged arc furnace flue gas waste heat utilization technology Integral forged copper tile type holder electrode system Intelligent electrode automatic adjustment technology Continuous hot feeding technology Continuous cold feeding technology Double mouth, double bag tapping and slag tapping technology The unique waterway design and advanced manufacturing process of the water-cooling protective sleeve9000KVA Ferrosilicon SAF
25000KVA Silicon Manganese Furnace Submerged Arc Furnace
25000KVA Silicon Manganese Furnace
The main equipment of the 25500kVA silicomanganese furnace (Submerged Arc Furnace) adopts a semi-enclosed fixed furnace type with a low fume hood.
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25000KVA Silicon Manganese Furnace Submerged Arc Furnace
The main equipment of the 25000KVA Silicon Manganese Furnace (Submerged Arc Furnace) adopts a semi-enclosed fixed furnace type with a low fume hood. The electrode in this design uses a hydraulic jacking cylinder lifting device, and the short network uses water-cooled cables, water-cooled copper tubes, forged copper tiles, etc.
The main equipment of the 25000KVA Silicon Manganese Furnace consists of: furnace body, hood and chimney, electrode part (including holder, electrode lifting device, electrode pressure and release device, pressure ring device), burn-through system, hydraulic and pneumatic system, etc.; auxiliary equipment components : Inclined bridge loading system, double-girder bridge crane, tapping system, casting equipment, etc.
The main equipment of the 25000KVA Silicon Manganese Furnace consists of: furnace body, hood and chimney, electrode part (including holder, electrode lifting device, electrode pressure and release device, pressure ring device), burn-through system, hydraulic and pneumatic system, etc.; auxiliary equipment components : Inclined bridge loading system, double-girder bridge crane, tapping system, casting equipment, etc.
1. Main Technical Parameters of 25000KVA Silicon Manganese Furnace
1.1 25000KVA Silicon Manganese Furnace Technical Parameters
- Furnace shell diameter (mm) Φ10500
- Furnace shell height (mm) 5630 (furnace wall thickness 1050)
- Furnace diameter (mm) Φ8400
- Furnace depth (mm) 3500 (brick thickness at the furnace bottom 2130)
- Electrode diameter (mm) Φ1400
- Electrode distribution circle diameter (mm) Φ3500±100
- Electrode working stroke (mm) 1400
- Electrode lifting speed (m/min) 0.5
- Number of tapholes (pieces) 2
- Copper wattage per electrode (block/rod) 8
- Cooling water consumption (t/h) 300
- Annual production days (d/a) 330
- Daily output (t/d) 120
- Annual output (t/a) 39787
1.2 25000KVA Silicon Manganese Furnace Transformer Technical Parameters
- Single-phase transformer 8500kV 3 sets
- Model: HKSSPZ-8500kVA/35kV
- Rated capacity (KVA) 25500, overload allowed 30%
- Cooling method: OFWF, strong oil and water cooling, the inlet water temperature is not more than 30℃, the outlet water temperature is not more than 40℃.
25000KVA Silicon Manganese Furnace Body
The furnace shell is an important part of the Submerged Arc Furnace body. It is welded with 20mm steel plates. The furnace bottom is a 22mm steel plate with a diameter of φ10500mm and a height of 5630mm. The furnace bottom is supported by 30# I-beam steel and is naturally ventilated on a concrete foundation. The furnace bottom is cooled, and the furnace shell is equipped with two tapholes. The total weight of the furnace lining is about 500t. It is built with new techniques of light and heavy clay bricks, high alumina bricks and carbon bricks.
Hoods and Chimneys
The low smoke hood adopts a regular 12-sided shape with a distance between opposite sides of 11300mm, a height of 2000mm, and is placed directly above the furnace body. The hood is equipped with 10 φ400mm feeding tubes for automatic feeding. There are two smoke exhaust ports on the upper part of the hood and two φ2000mm water-cooled smoke pipes that lead directly to the second chimney. The three-way pipe is connected to the reserved flue of the dust collector.
Furnace Outlet: The fume collecting hood is connected to the main chimney and is equipped with a butterfly valve. When tapping iron, the valve is opened and the flue gas is extracted from the main chimney.
Electrode Part
Submerged Arc Furnace Controller Device
The electrode holder clamps the copper tile to the electrode, and transmits the large current on the secondary side of the transformer to the electrode through the water-cooled conductive copper tube, water-cooled cable, and copper tile for smelting. The electrode lifting device can be used to adjust the position of the electrode. .
Electrode Lifting Device
The electrode lifting device is composed of hydraulic plunger lifting cylinders (6 in total), etc., used to adjust the position of the electrode. The electrode lifting speed is 0.5m/min, the working stroke is 1400mm, the inspection stroke is 2000mm, and the working pressure is 8~10Mpa. This device Compact structure, smooth operation, flexible and reliable.
Air Bag Brake and Electrode Pressing and Releasing Device
The function of the air bag brake is to hold the electrode tightly during smelting to prevent the electrode from sliding down. It cooperates with the proximity switch of the pressure and release oil cylinder to automatically lower and pull out the electrode when it is charged.
Furnace Bus Bar System
The Submerged Arc Furnace Bus Bar includes water-cooled compensator, copper pipe, water-cooled cable, conductive copper pipe, forging and its hanging fixtures. Between the secondary side outlet copper tube of the transformer and the water-cooled copper tube, a compensator using water-cooled cables can consume thermal expansion and buffer the impact of electric power on the equipment.
Cooling Water System
The Submerged Arc Furnace cooling water system is a device that passes water to cool components that work under high temperature conditions: short nets, pressure rings, protective sleeves, furnace shells, hoods, chimneys, etc. In order to facilitate maintenance, water channels such as short nets and pressure rings are specially equipped with drainage devices, which can quickly drain the water in the pipes when used for emergency repairs, inspections or lifting copper tiles.
SanRui 25500kVA Silicomanganese Furnace Technical Advantages
- Low voltage dynamic reactive power compensation technology
- Submerged arc furnace flue gas waste heat utilization technology
- Integral forged copper tile type holder electrode system
- Intelligent electrode automatic adjustment technology
- Continuous hot feeding technology
- Continuous cold feeding technology
- Double mouth, double bag tapping and slag tapping technology
- The unique waterway design and advanced manufacturing process of the water-cooling protective sleeve
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