Environmental Advantages

Without using pellets or sintering, powder materials are directly used, eliminating the generation and emission of pollutants such as dioxins and nitrogen oxides during the pretreatment process; The flexibility of raw materials allows for the selection of cheaper high phosphate ore, iron oxide scale, or pollutants such as steel plant dust and tailings from mineral processing, providing a new approach for the treatment of industrial pollutants;

Using coal powder directly instead of coke reduces the consumption of coking coal resources and eliminates the production of harmful substances during the coking process;

Recyclable materials such as air, skin, and heat can be used for environmental purposes, with low emissions and minimal pollution, achieving the combined utilization of energy and materials;

The process principle determines that most of the atmospheric pollution sources such as sulfides enter the slag, so the generated atmospheric pollution is far lower than traditional gold treatment technologies such as blast furnaces.

Advantages of Automation

The Yokogawa CENTUM CS3000 system performs control functions, providing real-time information and short-term trend data. The main control of the entire factory is centralized in the main control room, which is staffed by three personnel including process technicians, equipment operators, and dispatchers to achieve normal operation of the entire factory, greatly reducing manpower;

A series of main operations include safety interlock devices to prevent the factory from starting in an unsafe state. As long as there is a safety interlock in one equipment, the equipment cannot be started to ensure the safety of personnel and equipment;

The alarm system can warn the operator of any process or aspect of the equipment that exceeds normal operating principles. If the operator fails to change the operating status in a timely manner, the alarm will continue until the equipment operating parameters are normal;

The factory control system can plan and respond to various situations in case of emergency. If emergency action is taken, the factory control system will continue to monitor and record all factory data, and perform necessary operating procedures to safely shut down or continue the operation of factory equipment;

In the future, with the further development and maturity of artificial intelligence, machine learning, cloud computing, and big data technologies, the Hlsmelt factory has great potential to build an artificial intelligence ecosystem that combines factory hardware and software systems.

No need for main coking coal, coke or purchased coke, ordinary anthracite or some bituminous coal can be used. The coal composition requirements are not strict and the adaptability is strong. Coal powder composition requirements: Fixed carbon>65%, volatile matter>8%, sulfur<0.7%, no other process requirements;

Strong resource adaptability, suitable for high phosphate ore, blast furnace ash removal, steel mill waste and recycled materials, without the need for sintering, pelletizing and other block making processes. The powder can be directly dried and preheated for use. The requirements for iron containing materials are: particle size of over 90% less than 4mm, total iron content greater than 55%, and no other process requirements;

Can use a single type of material, no need for ingredients, no need for ingredient factories or other pre-treatment processes;

No sintering or pelletizing process is required, so no auxiliary materials are needed for this process;

The auxiliary materials are dolomite and lime, and the demand is relatively small, with no other auxiliary material requirements (the attached figure shows the cost comparison of mainstream metallurgical raw materials in 2016);

The Hlmelt process has strong adaptability to raw materials, low process requirements, and does not rely on scarce resources such as coking coal and lump ore. It has broad long-term development prospects.

Cost Advantage

Small footprint, low investment in fixed assets, and low financial expenses such as depreciation;

The raw materials are directly sprayed into the SRV furnace without the need for pre chemical reactions such as coking and sintering

Waste gas and waste heat can be recovered and utilized, mainly for power generation, preheating of rotary kilns, etc., to reduce operating costs;

Due to the short process flow, the 800000 ton production project has a staffing of around 230 people, resulting in low labor costs;

Strong adaptability to raw materials, lower priced raw materials can be selected according to market conditions, or cheaper low-grade ores, high phosphate ores, or iron oxide scales can be chosen as waste materials to reduce operating costs.

Product Advantages

The main products include cast high-purity pig iron and high-quality high-purity special pig iron. The five harmful elements in the products are extremely low, mainly used in high-speed rail, nuclear power, wind electric forging, aerospace, various low-temperature impact resistant castings and ductile iron parts, which can greatly improve the compressive strength, tensile strength, elongation and low impact resistance of castings and forgings.