Nitrogen Closed Cycle Intelligent Fluidized Continuous Dryer
WORKING PRINCIPLE
Firstly turn on venting valve of closed system, charge nitrogen to
system, after replacing air in system to scheduled target, turn off
venting valve, turn on fan, heat nitrogen and open coolants to make
the whole system in normal feeding status, start feeding, control
retention time, evaporated solvent enters into condensation cooler
at this time, and becomes liquid state into recovery tank after
being condensed, incondensable nitrogen re-enters fan, and then
enters into dryer for next circulation after being heated; strictly
control the balance of feeding and discharging quantity, control
temperature and system pressure of every point, once
oxygen-containing value of system exceeds standard, nitrogen will
replenish automatically, automatic relief pressure valve will open
automatically together with alarm system, if pressure exceeds
standard, PLC procedure controls and debug all parameters to normal
scope automatically and remove dust at fixed time and fixed
intervals. So the cycle repeats to realize continuous production,
and reach the purposes of drying materials and recovering solvents.
Due to flammability and explosiveness of solvent, the whole system
is explosion proof, and set with explosion vent and explosion-proof
membrane, it can conduct directional explosion venting, and
guarantee the safety of device and personal safety of operators.
FEATURES
It implements the whole closed system, utilizes nitrogen as
heat-transfer medium, recycles to use, especially suitable for
drying of easilyoxidized, inflammable and explosive materials;
Due to closed circulation and continuous drying, no waste gas
exhausts basically and greatly improve production environment;
Solvent recovery with low boiling point and extensive
applicability, common solvents : benzene, methylbenzene, methanol,
alcohol, acetone, cyclohex ane, n-heptane, chloroform and DMF can
all be recovered effectively, recovery rate comesto 90%-98%, it
saves resources, protectsenvironment, and reduces production cost;
Boiling and drying realize serialization, it improves output and
efficacy, reduce energy consumption, and alleviate labor intensity
of workers;
Cylinder vibration replaces nitrogen pulse dust-removal, it not
only guarantees pressure balance of system, but also guarantees
dust-removal effectiveness;
Online detecting moisture, online detecting oxygen containing,
online detection pressure, online detecting temperature of all
points, ensurethe whole production in effective monitoring scope;
Adopt advanced condensation and cooling technique, apply composite
plates to replace fin, use labyrinth liquid plates to collect
solvent, improve condensation and cooling effect, and increase
recovery rate of solvent;
Adopt intelligence control, improve automation degree of device,
and ensure safety, advancement and scientificalness of device;
Select oil proof, water proof, anti-sticking and anti-static carbon
fiber filter bag, adopt PTFE film, apply three-needle sewing
process, andensure filter bag no leakage;
Fluidized bed adopts inclined and straight holes alternate
combination form, adopts laser drilling, ensures bed plates flat,
hole has no burr, plate does not deform; large bed is set with
adjustable weir plate.
Application
1. Solvent,solvent-containing materials' drying and solvent
recovering.
2. Wet particles and meterial drying from swinging particles and
wet high speed mixing granulation.
3. Drying for medicine,food,chemical and other fields containing
solvent wet granules and poedery particles.
4. Drying for such materials with large particles,small pieces as
well as small sticky materials.
Structure Scheatic
Packing & Delivery
Our Service
Pre-Sales Service
* Inquiry and consulting support.* Sample testing support.* View
our Factory.
After-Sales Service
* Training how to instal the machine, training how to use the
machine.* Engineers available to service machinery overseas.
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