Title:
BENEFICIATION PROCESS FOR PREPARING SINTERED ORE AND PELLET ORE RAW MATERIALS BY USING IMPORTED IRON ORE
Document Type and Number:
WIPO Patent Application WO/2024/082555
Kind Code:
A1
Abstract:
The present invention relates to a beneficiation process for preparing sintered ore and pellet ore raw materials by using imported iron ore. The beneficiation process is characterized in that the grade of the imported iron ore is 40%-52% and the granularity is 12 mm-0 mm; the beneficiation process comprises dry screening, wet screening I, coarse particle jigging pre-selection, fine particle jigging pre-selection, high-pressure roller grinding, wet screening II and low- and high-intensity magnetic separation; the imported iron ore is processed by said beneficiation process to obtain a lump mineral product having a particle size of 12 mm-3 mm and a grade ≥ 58%, a fine mineral product having a particle size of 3 mm-0.5 mm and a grade ≥ 60%, and a pellet ore raw material having a grade ≥ 64%. The advantages of the present invention are as follows: imported iron ore is screened and graded, narrow particle-level jigging is used for pre-selection, and qualified lump ore and fine ore are obtained in advance as sintered mineral products, thereby reducing subsequent ore grinding, and a pellet ore raw material is ultimately obtained by means of low- and high-intensity magnetic separation; ball milling is substituted by roller grinding to reduce energy consumption and costs, resulting in significant economic benefits and practical value.
Inventors:
WANG XINGLIANG (CN)
ZHANG YUYANG (CN)
YANG HAILONG (CN)
ZHANG YUYANG (CN)
YANG HAILONG (CN)
Application Number:
PCT/CN2023/084628
Publication Date:
April 25, 2024
Filing Date:
March 29, 2023
Export Citation:
Assignee:
NORTHERN ENGINEERING & TECH CORPORATION DALIAN MCC (CN)
International Classes:
B03B7/00; B02C21/00; B02C23/08; B03B9/00
Attorney, Agent or Firm:
DALIAN CHICCO PATENT OFFICE (CN)
Download PDF: