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XSG Series Spin Flash dryer
Absorbed the foreign advanced equipment and technology, This is a new kind of drying equipment used for drying the materials, such as paste state, cake state, thixotropy, thermal sensitive powder and particles. Our factory is equipped with the testing sample machine, which can be used for carrying out the drying tests of various feeds for our users and for to provide the parameters to select the applicable machine.
Principles
The hot air enters into the bottom of the dryer in tangent
direction. Under the driving of the stirrer, a powerful rotating
wind area is formed. The paste state materials enter into the dryer
through the screw charger. Under the powerful function effect of
stirring at high-speed roation, the materials are distributed under
the function of strike, friction and shearing force. The block
state materials will soon be smashed and contact the hot air fully
and the materials are heated and dried. The dried materials after
the de-watering will go up with the hot-air flow. The grading rings
will stop and keep the big particles.Small particles will be
sidcharged out of the dryer from the ring center and will be
collected in the cyclone and dust collector. The not-fully-dried or
big piece materials will be sent to the wall of the equipment by
centrifugal force and be smashed again after they fall down to the
bottom.
Flow Chart
Feeding System
For the feeding system ,normally , we choose double screw feeder
.Double Shaft with Specially Designed Blades for lumps break as to
ensure the raw material into the drying chamber smoothly . And
drive Through motor & Gear Box
Drying Chamber
For the drying chamber , it consists of the bottom stirring section
, middle section with jacket and top section.Some times , the
explosion vent on the top duct on request .
Dust Collecting System
For the dust collecting system, it has several ways .
The Finished product collected is using cyclones, and/or bag
filters. Typically, cyclones are followed by scrubbers or bag
filters for final cleaning of the exhaust gases to meet current
emission requirements.
Feature
1.The collection rate of finished product is very high.
To adopt cyclone separator with high efficiency and low resistance
(the collection rate can be above 98%), together with air chamber
type of pulse cloth bag deduster(the collection rate can be above
98%)
2.To control final water content and fine of finished product
efficiently
To control final water content and fine of finished product through
adjusting screener and inlet air speed.
3.no materials stick on the wall
Continuous high-speed air flow washes out the materials stayed on
the wall strongly in order to clear the phenomenon that materials
stay on the wall
4.This machine is good at processing thermal sensitive materials
The bottom of main machine belongs to high temperature area. The
air speed in this area is very high, and the material can hardly
contact heat surface directly, so there is no worry about burning
and color changing.
5.HENGYANG Spin Flash dryers are designed for continuous drying of
cohesive and non-cohesive pastes and filter cakes, as well as
high-viscosity liquids. The main components in an HENGYANG Spin
Flash plant are a feed system, the patented drying chamber and a
bag filter. Widely acclaimed by customers in a variety of
industries all over the world, this patented process provides a
faster and more energy-efficient alternative to spray drying. With
more than 150 HENGYANG Spin Flash dryer installations world-wide
HENGYANGDRYING combines experience and cutting-edge technology into
added-value solutions for our customers. Elevated drying
temperatures can be used with many products since the flashing off
of surface moisture instantly cools the drying gas without
appreciably increasing the product temperature which may damage its
quality.
6. Wet material is dispersed into a stream of heated air (or gas)
which conveys it through a drying duct. Using the heat from the
airstream, the material dries as it is conveyed. Product is
separated using cyclones, and/or bag filters. Typically, cyclones
are followed by scrubbers or bag filters for final cleaning of the
exhaust gases to meet current emission requirements.
7. The feed system consists of a feed vat where a discontinuous
flow of product is buffered and fragmented by an agitator prior to
continuous drying. A variable speed feed screw (or pump in the case
of fluid feed) forwards the product to the drying chamber.
8. The rotor at the conical base of the drying chamber fluidizes
product particles in a drying-efficient hot air flow pattern in
which any wet lumps are rapidly disintegrated. Hot air is supplied
by a temperature-controlled air heater and speed-controlled fan,
entering the drying chamber at a tangent in order to establish a
turbulent, whirling air flow.
9. Airborne, fine particles pass through a classifier at the top of
the drying chamber, while larger particles remain in the air flow
for further drying and powdering.
10. The drying chamber is rigidly designed to withstand pressure
shock in the event of explosive combustion of flammable particles.
All bearings are effectively protected against dust and heat.
Technical Parameters