The design and manufacture of HX-20t high power three-phase steelmaking arc furnace is according to GB10067.1-4 "Basic specifications for electroheat installation ".It is used for melting carbon and alloy steel and supply molten steel for refining equipment. Tapping is EBT. The production per year of one furnace thatequip with auxiliary energy will be above 10,0000t
Technical parameters
Rated capacity 20t Max capacity 33t, average 28t Furnace shell diameter φ4000mm Melting bath diameter φ3300mm Melting bath depth 830mm(include 100mm slag thickness) Volume furnace chamber 31m3 Melting bath Volume 5.54 m3(include 100mm slag thickness) Rated transformer capacity 12500kVA Primary voltage 35kV Secondary voltage 350V~295V~146V 12stage Voltage regulator method regulate at no-load Rated arc current 24kA Current frequency 50Hz Electrode pitch cycle diameter φ950mm Electrode lifting stroke 2800 mm Electrode max lifting speed 6m/min Electrode max lowering speed 4m/min Tapping angle at tapping 20° Tapping angle at slaging 15° Max furnace slanting velocity 1°/s Furnace roof swing angle 58° Furnace roof swing speed 1.5°/s Furnace roof lifting height 400 mm Furnaceroof lifting time <1min Weight of metal structure 120t(except hydraulic and electric equipment) Weight of refractory lining 60t Consumptionof cooling water 250t/h Electric arc furnace electrical equipment includes high-voltage power supply system, furnace transformer, low-voltage power supply system, and electrode lifting and lowering A control system consisting of an automatic regulator, PLC, and executive components. Equipment composition: One side of the high-voltage cabinet. One electric furnace transformer. One main control panel. One side of the low-voltage power cabinet. One operating table in front of the furnace. One operation box behind the furnace
Scope of complete supply
(1) Furnace body ,no- include lining1set (2) Furnace roof ring 1set (3) Roof lifting and swing mechanism 1set (4) Tilting mechanism 1set (5) Electrode lifting equipment1set (6) High current ling of arc furnace1set (7) Hydraulic system 1set (8) Water- cooling system 1set (9) Compressedair system1set (10) High level water tank 1set
(1) Transformer, include oil water cooler 1set (2) High voltage distribution cabinet 1set (3) Low voltage control cabinet 1set (4) Automatic and computer system 1set
Service to assurance
Equipment assignment plan and foundation condition drawings are provided to client
Operation instruction, drawings for repair and operation purpose and some relevant technical material are provided to client.
Free of charge to instruct technical assembling and commissioning, training operators on worksite.
At the condition of client following the specification of transport, storage, assembling and operation, from the date of goods send out, in 12 months if the product can not operate normally or damage happened caused by manufacture error, it is our responsible to repair or replace. It is free of charge. Pieces that are wear and tear easily are except.
If products problem occurred, after client's information received, we will reply and give treaty measures in 24 hours. If worksite service is required, we will send service man in 72 hours.
High-class and reliable spare parts are always available to our client.
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