Drawer
magnets consists of a row, or most commonly, rows of round
magnetic tubes that are assembled into drawers. Drawer
Magnets are recommended for fine cohesive materials such as
magnesium oxide, zircon powder, fly ash, aluminum, gypsum,
lime, powdered sugar, cornstarch, flour & pulverized
minerals and ceramics.
This
type of ferrous metal removal unit can be fitted simply in
existing pipe line or outlet of various equipments like
pulverizes blenders, & classifier or any other outlet
location. In
standard type each unit comprises to permanent magnetic
grids mounted one above the other. System
with multiple grids is available for special application. The
grids are easily removable for cleaning. The drawer is
fitted with flanges at outlet. As standard the magnetic rods
consisting hard ferrite ceramic magnets or high intensity
rare earth magnet is fitted in a sturdy steel housing. Model
with stainless steel grids and housing can be supplied if
required.
The
drawer magnets are available with either Ferrite Magnets or
with High Intensity Rare Earth NdFeB Magnets.
Types:
Based
on the sizes, configurations and the working capacities,
drawer magnetic separators are classified as:
Heavy
Duty:
Heavy
duty drawer are useful for optimum magnetic separation in
tough processing conditions like ambient temperature and
humidity, bridging, abrasion, corrosion or galling. There
are special coating on the drawer's tubes that prevents
sticking problems associated with certain products and
processing conditions. Due to this the cleaning operations
becomes even easier. The
cleaning can be accomplished both manually and
automatically.
Large
Tube
In
larger drawer magnets Rare Earth Magnetic tubes are
incorporated for optimum ferrous metal separation on
difficult flowing products such as flour, powdered sugar and
other products with a tendency to bridge. The placement of larger tubes below steep angled
diverters that prevent product from bridging or building up
on the tubes. Since
the spacing between the tubes are larger it allows the
product to flow freely through the housing.
Manual
Clean
For low
levels of tramp metal contamination, manual clean drawer
magnets are ideal. The
Magnetic tubes are located on the alternating centers of the
tubes. The
trapped materials can be removed with the help of shop rag
or gloved hand.
Self-Cleaning
In
difficult locations Self-cleaning Magnetic Drawer is
considered as suitable. Through the toggle switch the
operator can easily clean the assembly from a remote
location.
Features
Following
are the features of the drawer magnets:
(1) The drawer magnets can be fitted simply in existing pipe line or outlet of various equipments like pulverizers, blenders etc.
(2) Generally
each unit comprises of permanent magnetic grids mounted one
above the other.
(3) For
special applications there are systems with multiple grids.
(4) The
grids are easily removable for cleaning.
(5) Normally
the ferrite or rare earth and NdFeB magnets are used in the
drawer magnets.
(6) Certain types of drawer magnets handle a wide
range of separation tasks in gravity conveying systems
Applications
The
drawer magnets can be applied in following areas:
(1) Mining
industries
(2) Pharmaceuticals
industries
(3) Food
processing industries
(4) Industries dealing with powdery
substance
(5) Cement, gypsum and other types of small scale
industries.
