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HL Agitated Filter is a cylindrical,
vertical closed vessel made as per pressure vessel code. The
vessel is fitted with plane filter media, either metallic
or synthetic at the lower end of the vessel. Specially designed,
slow speed, robust Agitator assembly is mounted on vessel.
The agitator design adopted is advanced and unique to this
system. The "S" type self centering blades are made
from heavy sections to handle liquid as well as solids. It
has four movements; each movement, either single or in combination
is designed to carry out specific operations.
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The movements of agitator are:
1. Clockwise rotation
- For smoothening cake surface and compacting it during
filtration.
2. Anticlockwise rotation
- For stirring near filter media to keep it clear of
sedimentation, reslurrying while washing and automated
discharging.
3. Upward movement
- Operated by hydraulic cylinders at constant speed
to assist mixing.
4. Downward movement
- Operated by hydraulic cylinders with variable speed
to assist squeezing and discharging.
Hydraulic power pack is a part of the system.
It has multiple functions viz.:
1. Discharge valve operation for labour-free cake removal.
2. Lowering and lifting the Agitator.
3. Lowering the detachable bottom when provided.
4. Driving the Agitator, when hydraulic motor is used.
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The above features along with precision in
manufacturing give excellent process control viz. filtering,
spreading, compacting, reslurring, washing, discharging and
drying.
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Cake discharging valve is circular-plug
type, welded on the shell just above the filter plate,
when closed, it takes exact shape of the vessel. Specially
designed perforated spray pipe or washing nozzles are
provided inside the vessel for efficient washing of
the wet cake and cleaning the vessel. A control panel
is ergonomically placed on the machine, housing all
controls. One person can effectively monitor and control
entire process. Mechanical, electrical and hydraulic
safety features are incorporated to operate the machine
safely.
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Detachable Bottom
HL Filter / Filter Dryer
when supplied with detachable bottom can be lifted/lowered
by hydraulic cylinders. Unique quick descending / ascending
arrangement is also available where the bottom is held
in position by hydraulic cylinders during pressure filtration.
This arrangement can assist in quick changing of filter
cloth and product change.
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Filter Media: Filter
cloth/Sintered wire mesh:
- Filter media is selected as per specific process
requirements.
- They are textile cloth from natural or synthetic
fibres, metal wire clothes or multilayered sintered
metal.
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Discharge Valve and
Sampler:
- Plug type side discharge valve is provided near
the filter plate.
- Designed as per customer requirements:
- Metal to Metal sealing.
- Polymer sealing.
- Quick openable doors.
- Online product sampler with valve.
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Mechanical Seal:
- Double / Single Mechanical Seal either dry or wet
type can be fitted on HL
filter / filter dryer. The mechanical seal has bellow
extended on the shaft.
- Specially designed FDA approved gland packings
are also supplied for pharma models.
- Stuffing box with PTFE support is supplied on standard
models of Agitated Filters and Filter Dryers.
- The agitator blade is very specific to this machine.
It is energy efficient and handles solids and liquids
effectively.
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Pharma
Industries
