Iron ore is the core raw material of the steel industry and is widely used in construction, manufacturing, science and technology and other fields. my country's iron ore resources are mainly poor ores with low grades, so efficient crushing and processing technology is crucial to improving resource utilization. This article will introduce the process flow, equipment configuration and application value of the iron ore crushing production line.

Process flow: from coarse crushing to fine powder

The typical iron ore production line adopts a three-stage one-closed-circuit crushing and multi-stage magnetic separation circulation system:

Coarse crushing stage: The jaw crusher (such as the C6X series) crushes the raw ore ≤850mm to a medium particle size. Its non-welded frame and double wedge adjustment device ensure high crushing efficiency and low maintenance cost.

Medium and fine crushing stage: A combination of single-cylinder (HST) and multi-cylinder (HPT) hydraulic cone crushers are used to achieve "more crushing and less grinding" through laminated crushing, and the material is refined to 6-10mm, reducing the subsequent grinding energy consumption.

Sorting stage: The magnetic separation system separates the iron concentrate, and the tailings are processed into building aggregates through the shaping system to achieve zero waste of resources.

Key equipment and technical advantages

Joint operation of jaw crusher and cone crusher: The high processing capacity of C6X jaw crusher combined with the particle shape control ability of HST/HPT cone crusher can handle high-hardness ores, and the output of a single machine is 600-700 tons per hour.

Green production design: The dry process is equipped with a dust removal plant, and dust emissions are controllable; the positive pressure dust prevention and integrated lubrication system of the hydraulic cone crusher extend the life of the equipment.

Intelligent control: Automatically adjust the parameters of the crushing chamber, monitor the equipment status in real time, and reduce manual intervention.

Application cases and benefits

Take a project in Shandong as an example, equipped with 4 HST cone crushers and S5X vibrating screens, with an annual output of 500,000 tons of iron ore concentrate and simultaneous output of building aggregates. The production line converts low-grade ore into building materials through waste processing, and the comprehensive income is increased by 30%. Projects in Xinjiang, Inner Mongolia and other places also adopt similar solutions to help mining areas achieve a win-win situation in economy and environmental protection.

Future trends

With the advancement of the "dual carbon" goals, iron ore processing is moving towards low energy consumption and zero pollution. New technologies such as mobile crushing stations and high-pressure roller mills will further optimize the process, and the EPC general contracting services launched by companies such as Liming Heavy Industry provide customers with full-chain solutions from design to operation, promoting industry upgrades.

Through scientific equipment selection and process design, iron ore production lines can not only improve resource utilization, but also reduce overall costs, providing solid support for the sustainable development of the steel industry chain.