The permanent magnet drum wet magnetic separator is a device used for mineral
separation and purification, especially for wet magnetic separation operations,
widely used for the separation and de ironing of minerals such as quartz sand,
iron ore, titanium ore, coal, non-metallic minerals, etc. This device utilizes
magnetic fields to separate magnetic substances from non-magnetic substances,
making it an efficient and environmentally friendly mineral processing
equipment.
main features
Permanent magnet source: The permanent magnet drum wet magnetic separator
uses high-strength permanent magnet materials as the magnetic source, which has
a stable and long-lasting magnetic field, does not require external power
supply, and has low operating costs. Common permanent magnet materials include
neodymium iron boron (NdFeB), which can provide strong magnetic field
effects.
Wet sorting: The working principle of this equipment is to suspend mineral
particles through water flow, and the minerals enter the magnetic separator
together with the water flow. When materials pass through a magnetic separator,
magnetic substances will be adsorbed by a strong magnetic field, while
non-magnetic substances will be discharged with the water flow.
Cylindrical structure: The core part of the equipment is a rotating cylinder,
which is equipped with permanent magnets. Mineral materials enter the cylinder
through the feed inlet, and as the cylinder rotates, the minerals are adsorbed
by the magnetic field and carried to the outlet. After a period of sorting, the
minerals will form a concentrated layer on the surface of the cylinder, thereby
achieving material sorting.
High efficiency and low energy consumption: Due to the use of permanent
magnet materials, the permanent magnet drum wet magnetic separator hardly
consumes external power during operation, and only uses the magnetic field
effect of the magnetic material itself for sorting, which can effectively reduce
energy consumption.
working principle
The working principle of the permanent magnet drum wet magnetic separator is
based on the magnetic attraction of the magnetic field to separate the magnetic
differences of different minerals. The specific workflow is as follows:
Feeding and water flow guidance: Ore materials and water enter the magnetic
separator through the feeding port, and under the driving of the water flow, the
mineral materials are dispersed and suspended in the water.
Magnetic sorting: The material passes through a rotating magnetic cylinder,
and the strong magnetic field inside the cylinder attracts magnetic minerals
(such as iron ore) and adsorbs them onto the surface of the cylinder.
Stratification and discharge: Magnetic minerals are adsorbed and carried away
by a magnetic field, forming a concentrated layer after sorting, while
non-magnetic substances are carried away by water flow and ultimately divided
into magnetic and non-magnetic materials, which are discharged through different
outlets.
Automatic slag discharge: During the operation of the equipment, the magnetic
separator automatically separates the magnetic substances adsorbed by the
magnetic field, and these magnetic substances are ultimately discharged to the
designated location.
Main applications
Quartz sand processing: In quartz sand production, a permanent magnet drum
wet magnetic separator is used to remove iron impurities from quartz sand and
improve its purity. This is particularly important for quartz sand that requires
high purity, such as in glass manufacturing, semiconductor industries, etc.
Ore sorting: can be used for magnetic material sorting of various ores, such
as iron ore, titanium ore, chromium ore, etc. Through effective magnetic
separation, the grade of ore can be improved and unnecessary impurities can be
reduced.
Iron removal from coal: Coal often contains iron impurities, which affect the
quality of coal. The permanent magnet drum wet magnetic separator can
effectively remove these iron impurities.
The processing of non-metallic minerals such as tantalum niobium ore,
zirconium ore, bauxite, etc. can be effectively separated by a permanent magnet
drum wet magnetic separator for useful components and impurities in these
minerals.
advantage
Environmental Protection: Wet magnetic separation, through water flow
separation, can effectively reduce dust pollution and is more environmentally
friendly compared to dry magnetic separation.
Low energy consumption: Due to the use of permanent magnet materials, there
is no need for external power supply, which reduces the energy consumption and
operating costs of the equipment.
Easy to operate: The device has a simple structure, easy operation and
maintenance, and is suitable for long-term operation.
Efficiency: The permanent magnet drum wet magnetic separator has high
magnetic separation efficiency and can achieve good separation results,
especially when dealing with iron impurities in ores.
High purity products: can effectively remove magnetic impurities from
materials, improve product purity, especially suitable for industries with high
purity requirements, such as electronics, photovoltaics, glass manufacturing,
etc.
Equipment structure
The structure of a permanent magnet drum wet magnetic separator generally
consists of the following main parts:
Magnetic separator cylinder: a rotating cylinder made of permanent magnet
material, which is the core component of the equipment. The magnetic field
strength inside the cylinder is high, which can efficiently adsorb magnetic
minerals.
Feeding system: Mineral materials are mixed with water through the feeding
port and sent to the magnetic separator for sorting.
Water flow system: used to guide minerals and water flow into the magnetic
separator together, ensuring that the materials are fully dispersed, and the
amount of water flow directly affects the sorting effect.
Slag discharge system: used to separate non-magnetic materials and discharge
them outside the equipment.
Drive system: drives the magnetic separator to rotate, usually consisting of
an electric motor and a reducer.
Common problems and solutions
Insufficient magnetic field strength:
Solution: Check whether the permanent magnet material is aging or damaged,
and replace the magnet if necessary to ensure the magnetic field strength.
Poor sorting effect:
Solution: Check if the feeding amount is too much or too little, adjust the
water flow and layer thickness, and ensure that the material stays in the
magnetic field for an appropriate time.
Equipment blockage:
Solution: Regularly clean the inlet and outlet to ensure the normal flow of
the equipment.
Uneven water flow:
Solution: Check for blockages or leaks in the water flow system, adjust the
water pump pressure to ensure even water flow.
summary
The permanent magnet drum wet magnetic separator is a device that uses
permanent magnet materials for wet magnetic separation, widely used for the
separation of magnetic impurities in quartz sand, ore, coal, and other
materials. It has the advantages of high efficiency, low energy consumption, and
environmental protection, especially suitable for processing minerals containing
iron impurities, which can greatly improve the purity of products. Its stability
and efficient sorting ability make it an indispensable equipment in modern
mineral processing and high-purity material production.