With the development of the ore industry, the mining of graphite ore is becoming more and more abundant, and its use is extremely wide, which is used in almost every industry. The hardness of graphite ore is generally medium or hard, and the grade is generally between 2% and 10%. The crushing process is relatively simple. It usually uses three-stage open circuit, two-stage open circuit, one-stage crushing process or flotation process.
The medium and small ore, which is mainly processed with weathered ore, can be directly sent to the vertical roller mill which is developed by SBM heavy machine without being broken. The general flotation process is generally a closed-circuit process of multi-stage grinding, multi-stage sorting, and medium-mine order (or centralized) return. There are three forms of multi-stage processes, namely re-grinding of concentrates, re-grinding of mines and re-grinding of tailings. Crystalline graphite is mostly used in the regrind process of concentrate. Under normal circumstances, the recovery rate of ore dressing can reach about 80%. Some mines have also tried the re-grinding process in the mine, but the effect is not obvious. Individual small plants also use open or semi-open flotation processes due to excessive dropping of tailings. The recovery rate of ore dressing is very low, generally only 40% to 50%.
Graphite is an allotrope of elemental carbon. Each carbon atom is connected to another three carbon atoms (multiple hexagons arranged in a honeycomb shape) to form a covalent molecule by covalent bonding. Carbon is a very common element that is found in many forms in the atmosphere and in the earth’s crust. The carbon element has been recognized and utilized very early, and a series of carbon compounds, organic matter, are the foundation of life. Carbon is one of the components of pig iron, wrought iron and steel. Carbon can chemically self-bond to form a large number of compounds, biologically and commercially important molecules. Most molecules in the organism contain carbon.
According to the above pulverization of graphite ore, SBM heavy machine has made a profound research and analysis on this, and the equipment commonly used in graphite ore crushing is classified into: vertical roller mill grinding machine, high pressure suspension roller mill, high pressure micro powder mill And ultra-fine mills. According to the unique properties of graphite ore and the commonly used mineral processing methods, SBM heavy machine has been investigated and researched to build graphite ore from rough grinding to fine grinding to ultra-fine vertical roller mill integrated equipment, which has low investment cost and high efficiency. Safe and reliable, energy saving and environmental protection!