Automatic Horizontal Scraper Bottom Discharge Centrifuge for Starch
Extraction
Description
When the drum driven the motor runs at full speed, the feed valve
automatically opens up and the suspension liquid goes through the
feed pipe into the drum, where the liquid phase passes through the
filter gauze and the screen openings on the drum and is kicked off
by the centrifugal force and flows out of the tangential
discharging outlet, while the solid phase is retained inside the
drum. When the set time is reached, the feeding stops.
After a given period of time of separation and dehydration, the
washing valve acts and the cleaning liquid passes through the
washing pipe into the drum to wash the filter cake. Upon the
completion of washing, further separation is conducted till the
required degree of dryness of the cake is reached. Then discharging
starts: the scraper holder rotates enabling the scraper to cut into
the cake layer and the cake is scraped off and discharged from the
material hopper.
Main Characteristics
1.This centrifuge adopts speed regulation by frequency convertor
and PLC control, friendly human-computer interface and electric
hydraulic (pneumatic) device. Monitoring can be executed in overall
processes such as feeding, initial filtering, washing,secondary
filtering and discharging etc. which embodies automatic operation
without operator, so human-machine conversation can berealized with
convenient use and maintenance.
2.Frequency speed regulation system is adopted to ensure stepless
speed regulation, while dynamic braking(or regenerative braking)is
adopted to ensure stable operation. There is also perfect
protection system, product level detection, speed inspection,
vibration protection, interlock protection for machines opening
over heating protection for motor and scraper motion protection all
of which make it safer for operation.
3.Adopted whole sealing sex-proof structure, the centrifuge has
automatic air exchange system (according to oxygen content content
or protective gas pressure) or inert gas protection, so it can meet
the demand of GMP Norm of pharmaceutical industry and solid-liquid
separation of flammable and explosive products.
4.Welded structure is adopted on the shell to ensure a tight form
and high intensity but light weight.
5.Inner surface is polished and no dead angles are left. Connection
parts, welding seam, corner and edge adopt round and smooth
treatment. Equipped with CIP system (product and machine cleaning)
to get a optimized washing effect.
6.The automatic residual cakes removing device is optional (have
owned the national patent)
Specification
| Model | Drum | G-force | Power(kw) | Weight(kg) |
Diameter (mm) | Volume (L) | Capacity (kg) | Speed (r/min) |
| PPC-135 | 800 | 95 | 135 | 1600 | 1150 | 30 | 5000 |
| PPCS-135 | 800 | 95 | 135 | 1600 | 1150 | 37 | 5500 |
| PPC-135 GMP | 800 | 95 | 135 | 1600 | 1150 | 37 | 6500 |
| PPC-312 | 1000 | 208 | 312 | 1350 | 1020 | 45 | 6500 |
| PPCS-312 | 1000 | 208 | 312 | 1350 | 1020 | 55 | 7000 |
| PPC-288 | 1200 | 230 | 288 | 1200 | 968 | 45 | 8000 |
| PPC-375 | 1250 | 250 | 375 | 1200 | 1008 | 45 | 9000 |
| PPCS-555 | 1250 | 370 | 555 | 1200 | 1008 | 75 | 12000 |
| PPC-960 | 1600 | 650 | 960 | 850 | 650 | 75 | 13500 |
| PPCS-960 | 1600 | 650 | 960 | 850 | 650 | 90 | 15000 |
Applications
Cassava Starch Centrifuge is the filter equipment characterized with continuous running,
scraper discharging and intermittent operation, applicable to the
separation of the suspension liquid containing medium-sized
granules or fine granules (0.01mm~5mm).
It can also be used for the separating of the suspension liquid
containing short fibers (with the fiber length less than 4mm), with
the concentration of the suspension liquid being 10%~60%. With
hydraulic and electric joint control mode adopted, this series of
centrifuges are capable of high degree of automization, with such
working processes as feeding, dehydrating, washing, discharging,
etc. being operated manually or by means of PLC for full automatic
control.
The horizontal scraper discharging centrifuge has good adaptability
to the material to be processed and thus can be widely used in such
industrial fields as chemical, light industry, food, pharmacy, etc.
for the separating of over 100 kinds of substances including
ammonia sulphate, sodium sulphate, anthracene, boric acid, starch,
pesticide, synthetic resin, sodium cyanide, potassium chloride,
sodium bicarbonate, etc.
WORKING PRINCIPLE
▷When predetermined target is met and drum speed is suitable for
feeding, feeding valve will be open automatically and product level
detection begins to work.
▷When layer thickness is thick enough to reach the product
detection slab, feeding valve closes to stop feeding.
▷Under the effect of centrifugal force, most of the liquid in
suspension is thrown out through filter cloth and then flows into
mother liquid tank through horizontal liquid outlet.
▷With product dehydration going on, centrifuge will automatically
slow down to washing speed according to technical requirement for
washing.
▷Washing valve opens automatically. With washing liquid rising to a
certain height, washing valve closes and centrifuge speeds up
automatically for further dehydration(secondary filter).
▷After operation, product will be fully dried. Then discharging
valve opens and discharging cylinder begins to work when
centrifuge automatically slows down to predetermined speed.
▷With scraper rising spirally and automatically,solid product is
scraped down into the hopper equipped with spiral discharger: With
constant motion of spiral discharger, product is pushed out and
discharged through valve.
▷Scraper rises closer to filter cloth with a certain distance till
the bar on scraper device approaches proximity switch to stop
scraper rising then retreats quickly after a short stay(about
15s)then enters next cycle.
MAIN CHARACTERISTICS♦ It is fully conformed to GMP CGMP and meet the requirements of
asepsis raw medicine production.
♦ With absolute isolation between power area and process area.It is
suitable for occasion when customer requires high quality cleaning
to avoid the contamination to product.
♦ The out shell bucket can be opened, so the whole internal parts
can be observed and easy for touch wiping and cleaning.
♦ Perfect CIP system can be carried out to wash the internal parts
of centrifuge to avoid cross contamination which are not easy to
clean.
♦ Unique pneumatic counter-pulse device is equipped, which can
remove remnant filter cake as much as possible.
♦ Totally-enclosed structure equipped with inert gas protection is
adopted to be used in ex-proof 1 section.
♦ The automatic residual cakes removing device is optional (have
owned the national patent).
More pictures
SS316 Automatic Horizontal Bottom Discharge Centrifuge For Starch
Extraction
