Types of graphite ore
Different graphite ores are suitable for different processing
flowsheets. Natural graphite, according to crystal diameter, is
usually divided into:
- Amorphous graphite (crystal diameter less than 1 μm).
- Crystalline graphite (crystal diameter greater than 1 μm).
Crystalline graphite, often referred to as generally refers to
flake graphite, which can be divided into large flake graphite
(crystal diameter greater than 147 μm) and small flake graphite
(crystal diameter less than 147 μm).
Amorphous graphite ore processing flowsheet
Amorphous graphite ore has a high grade (generally containing 60%
to 80% carbon), but the particles of graphite ore are extremely
small and often embedded in clay, making flotation separation
impossible. Therefore, many graphite mines directly pulverize and
grind the mined raw ore to sell graphite powder products.
The traditional process is raw graphite ore - crushing - drying -
grinding - grading -packaging.
Flake graphite ore processing flowsheet
Flake graphite has good flotation, so froth flotation is an
effective beneficiation method. Large flake graphite has excellent
properties and wide application. In the beneficiation process, we
should protect the surface of large flake graphite from damage and
separate it in time. Therefore, we use the method of a multi-stage
grinding and multi-stage flotation to process flake graphite.
Graphite ore crushing
(1) Raw ore feeding particle size: 300~500mm;
(2) Final product particle size: 10~20mm;
(3) The commonly used crushing process is a two-stage open circuit
or a three-stage open circuit;
(4) The equipment is a jaw crusher for primary crushing, a cone
crusher, or a hammer crusher for final crushing.
We are equipped with CNC milling and lathe centers as well as band
saw and carbon saw cutting equipment. We are able to receive your
AutoCad drawings electronically. Hangyang Industial can also provide AutoCad drawing services for you. Hangyang
Industial. warehouses a large inventory.
Hangyang Industial custom fabricates parts for the following applications:
- Crucibles Parts: melting, reduction, slag reduction, sampling
- Aluminum Processing: sidewalls, extrusion guides, run out tables,
canister discs & blanks
- Boats, Trays & Chills: heat treating, sintering, sand molds
- Furnace Parts: induction, vacuum, fixtures, plates, rails,
elements, spacers, carbon/carbon components, heating rods, holders,
contacts
- Glass Handling: carbon/carbon parts: take-out inserts, lehr bar
applications, guides, plates, pusher bars, stacker pads, dead
plates
- Molds: thermal welding, hot pressing, fused refractories, castings
Graphite ore flotation separation
(1) Collector: kerosene and diesel are more popular options;
(2) Foaming agent: the most popular option is 2# oil;
(3) Regulator: If the graphite contains pyrite, lime is often added
to suppress it. When gangue contains quartz, mica, or silicate
minerals, sodium carboxymethyl cellulose, water glass, or a mixture
of these two agents in proportion are often used to inhibit gangue;
(4) Equipment: Mostly use a special flotation machine or a special
flotation column for graphite ore.
