DHHI has over 50 years of history for design and manufacture of vehicles for metallurgical and mining purposes. It has powerful technical strength and proud performance and is the manufacturer with the longest history, the completest categories of products, the most advanced technology and the widest coverage of products in the metallurgical equipment production field in China. The main products include hot metal mixing car, molten steel ladle, hot iron ladle, large submerged arc furnace, etc., which have been serialized.
Hot Metal Car
Hot metal car is for metallurgical enterprises to deliver iron, cast iron and locomotive converter workshop workshop for special metallurgical ingot iron work vehicle rollover. DHHI developed 200-450t torpedo car and cylindrical hot metal car Product market share of 95%, and exported to Japan, the United States, India, Turkey, Brazil, Vietnam and Algeria and other countries and regions.
Hot Iron Ladle & Molten Steel Ladle
Molten steel ladle and hot iron ladle are the basic tools for transfer operation in steel (iron) production and are the traditional products of DHHI, with a capacity of 120-360t for molten steel ladles and 120-417t for hot iron ladles. Since 1980s, DHHI has been engaged in the development of various ladles and has supplied thousands of ladles for domestic and overseas iron and steel plants for decades. The products spread in the major iron and steel enterprises in China and are also exported to Southeast Asia, Japan, Holland, UK, Mexico, etc.
- 300t Molten Steel Ladle and Hot Iron Ladle(in 2014)
Large Sub-merged Arc Furnace
DHHI is the main enterprise in development and manufacture of large submerged arc furnace and is in the leading position in the development trend of large, energy saving and environment protection for submerged arc furnace, in China. The products of DHHI mainly include calcium carbide furnace, series silicon alloy furnaces, series manganese alloy furnaces, series chromium alloy furnaces, series nickel alloy furnaces, industry silicon furnace and titanium slag furnace, etc. Since 1959 when the first submerged arc furnace was produced by DHHI, it has supplied over 400 submerged arc furnaces to domestic and overseas customers (including dozens of EPC projects). Up to now, DHHI has developed and produced 6.3MVA - 48MVA series submerged arc furnaces and meanwhile held complete technology, electrode core technology, furnace control technology and mechanized tapping technology, etc. for 60MVA, 75MVA, 81MVA calcium carbide furnaces through independent research and development. DHHI is the standard establishment unit for submerged arc furnace industry.
- 48MVA Enclosed Calcium Carbide Furnace(in 2013)
- 40.5MVA Enclosed Calcium Carbide Furnace(in 2012)
- 25.5MVA Internal-combustion Titanium Slag Furnace(in 2006)
- 33MVA Enclosed Manganese-Silicon Furnace (in 2010)