SPECIFICATIONS OF “THE BOMBAY ENGINEERING WORKS” FLUID BED DRYER
|The “THE BOMBAY ENGINEERING WORKS”
Fluid Bed Dryer has adopted new concept of GMP Regulation
with improved performance (drying time is much less than
the conventional model) minimum involvement of manual
labour simplified maintainance and utilise modular construction
techniques to provide flexible installation options.
The process unit is two piece made of SS-304/316 stainless
steel. Through mixing of Dry powders, Agglomeration and
Drying are carried out in one unit of “THE BOMBAY ENGINEERING WORKS”
Fluid Bed Dryer.
The salient feature
of “THE BOMBAY ENGINEERING WORKS” Fluidised Bed Dryer are as follows.
- The process unit is two piece, made of stainless
steel of SS-304 GRADE.
- All process contact parts are made of SS-304 grade.
- The finish employed externally will be all welds
ground back and polished into the surrounding materials.
- All of the external surfaces of the Dryer and all
non contact/sight parts will prepared with a uniform
fine texture matt finish.
- All of the product contact surface (SS-304) are
- Particular attention has been paid to reduce any
source of material Entrapment by mirror polishing
flush all welds to create crevice free profiles both
internally and externally.
- The expansion chamber containing the filter finger
bags & dished end are made of single piece construction
from SS-304/316 quality steel. Below that is the retarding
chamber made out of S.S. 304 Retarding chamber is
locked with the explosion chamber by means of clamps.
The length of the retarding chamber is such designed
, thereby providing extra large heat exchange are
which exposed each and every particle or the charged
batch in the Fluidized air resulting in instant drying.
- Specially designed base is provided for air vortex
effect and to give added strength.
- A central drain is provided in the base to release
BOWL/ PRO DUCT CONTAINER
- Product bowl is a conical shaped manufactured form
SS-304 grade stainless steel having stainless steel
mesh support along with fine finish air mesh.
- The product container Trolley is of Tubular construction
made form SS-304 pipe mounted on polypropylene castor
wheel (2nos fixed & 2nos. Swivel for maneuverability
) which imparts rigidity to carry the product container
with the charged load.
- The batch loading capacity is always higher in
case of “BOMBAY” Fluid Bed dryer, because
of better fluidisation by varying the frequent shaking
of the finger bags. Shaking period vary depending
on the nature of products.
A solid ‘D’ shaped food type silicon rubber
gasket is provided in the groove of the flanged joint
(between the product container and the retarding chamber)
to prevent any leakage of air with fines during operation.
UNIFORM LIFTING OF CONTAINER
Product container is lifted by specially designed
arrangement with the help of one centrically fitted pneumatic
cylinder which ensures uniform lifting throughout the
periphery of the container which ultimately gives uniform
upward pressure to the solid ‘D’ shaped Rubber
Gasket, thereby preventing any leakage during operation.
AUTO SHAKING DEVICE
Pneumatic cylinder is used for auto shaking device of
the finger bags is mounted on the body and is fitted with
a wire rope made out of S.S. 304 guided by pulleys thus
rendering the shaking extermely efficient. It also brings
down the finger bags to such a level that these can be
inspected very easily form the bottom of the retarding
chamber. If the shaking is not efficent , the particles
will be retained in the finger bags and there will be
no proper fluidisation resulting in formation of lumps
in the products container.
Blower and filter with heating arrangement are housed
in the rear chamber . They can also be housed the services
zone to avoid sound pollution as well as to avoid interference
of the maintenance people in the production zone.
Centrifugal type blower fan with dynamically balanced
impeller and backward curved blades.
All Stainless steel construction.
Direct coupled non—flameproof electric drive. Anti
–vibration mounting and independent sub-support
:: Air filter
Free standing unit constructed from aluminium anodisedl
frame work (SS-304) with doubled skinned panels. All wall
panels are cross based for added strength . Quick release
panels provided for inspection and maintenance access.
The air intake section has a full face external flange
for attachment of angle intact, or and extended inlet
Inlet system comprssiong of 20Micron washable filter.
followed by 5 micron prefilter, then pass through , heating
coil section containing a full air duct steam operated
heater battery, constructed with stainless steel tubes
and headers and a steel casing (SS-304). The moving process
air passes through the steam heater to achieve the desired
temperature. to match the inlet to the processing unit.
PT 100 temperature sensing probe will be fitted into the
air Transtion duct and will be connected upto the control
As per international practices the equipment is provided
with a rapture disc as measures of explosion Vent, Tested
at 2 Bar pressure, mounted on the side of the dryer.
A std designed earthing device spring type is provided
with the dryer however intrincically safe earthing device
with low voltage relay is also available.
ELECTRO PNEUMATIC CONTROL PANEL
A free stading steel control panel having the following
- Inlet air temperature controller.
- Exhaust air temperature indicator
- Product bowl lifting & lowering valve.
- Process air Damper regulation
- Blower motor, start & stop.
- Compressed air pressure quages.
- Filter bag shaking timer
- solenoid valves etc.
PROGRAMME LOGIC CONTROL SYSTEM
Semi-automated and fully automated PLC and PLC/PC control
system are available for selection at an appropiate level
of additonal cost. (OPTION)