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Seperation Equipments
Vibrating Screens
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The base unit whole base-unit drive assembly is mounted on a circular base with rugged springs which allows the unit to vibrate freely, and comprises carbon steel base and a motor table, support springs and spring mounts, top and bottom eccentric weights, a lead scale indicator, and a heavy duty motor for operation on 400-440V, 3-Phase 50 Hz power supply. The springs prevent transmitted vibration reaching the floor area on which the machine stands. The screen deck assemblies and spacing frames are connected together by stainless steel quick release circle clamps. Screen deck assemblies can be mounted one on top of the other within the vibroscreen assembly. The Vibroscreen is suitable for all types of screening operations within these four broad categories.
Dry Separation
This involves separation of different materials on the basis of their particle shape.
Dry Classification
This involves separation of solid particles into precise sized fractions.
Solid-Liquid-Separation
This involves dewatering of solids and clarification of liquids.
Solids Classification
This involves separation of solid-particles into sized fractions in a liquid medium. Highest screening efficiency is achieved by controlling the patterns of movement of solids on the screen surface. Control is achieved by varying the position of the bottom eccentric weight as shown in the diagram.
Applications in Process Industry | ||
Abrasives | (c) Ceramic Powder | (e) Paper Coatings |
ABS powder | Crushed Bones | Paints |
Aluminium foil (granulated) | Cellulose Powder | Potassium Chlorate |
Aluminium Powder | Detergent Powder | Sand |
Aluminium Swarf / Coolant | Dextrose | Silicon Carbide |
Ammonium Phosphate | Insecticides | Starch Slurry |
Ammonium Nitrate | Metal Powder | Steel shots/grits |
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Pennwalt Decanter Centrifuge
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Continuous Solid-Liquid Separation
Solids are continuously separated from the liquid phase by the application of centrifugal force ranging up to 3000 times the force of gravity, efficiently and economically. A characteristic feature of the Pennwalt Decanter Centrifuge is the cylindro-conical bowl containing within a helical/quasi-axial screw conveyor of matching profile that rotates in the same direction but at a slightly slower speed with respect to the bowl.
Extremely flexible Separation tool
- Handling a wide range of solid particle sizes from 5.0 mm to a few microns
- Handling slurries with insoluble solids content from as low as 0.5%w/v to as high as 55% w/v
Wide ranging, process specific applications of Pennwalt Decanter Centrifuge encompass:
- Clarification of liquids.
- Dewatering or deliquoring of solids
- Thickening or concentration of solids
- Classification of solids suspended in liquid
Economical Operation
Pennwalt Decanter Centrifuge, has polymiser features, wherein the feed zone & conveyor flights are modified to reduce the floc breakage and minimise conveyor turbulence in the pool. These features result in considerably reduced dose of polymeric flocculants. In addtion there is economy of space, power and labour required in the operation of the Pennwalt Decanter Centrifuge.
Stainless Steel Construction designed to resist corrosion
Carbon Steel corrodes, leading to unbalance, high maintenance costs, long downtimes. Therefore the principle elements and stressed rotating components of Pennwalt Decanter Centrifuge are machined from quality centrifugally cast Stainless Steel.
Designed to resist abrasion
Sintered Tungsten Carbide Tiles positioned on the flights of the Pennwalt Decanter Centrifuge scroll (conveyor) outlast conventional hard surfacing systems many times over in any environment.
BD Feature
This makes slimy and gelatinous sludges SCROLLABLE. The BD feature allows the Super-D-Canter to operate at Ultra-Deep pond settings that compacts the solids and creates a hydrodynamic buoyancy that assists the scrolling and the discharge of slimy sludge. Solid content are typically 1/2% - 2% in the feed slurry and 6%-12% in the slimy cake.
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High Speed Tubular Bowl Supercentrifuge
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This sectional view of a Super-Centrifuge shows the application of centrifugal force to a mixture of two immiscible liquids containing some suspended solids.
The mixture continuously enters the Super-Centrifuge through an inlet at the base of the machine, into the hollow cylindrical rotor. Rotors have been designed and engineered to rotate at 17000 r.p.m. and generate centrifugal force of upto 20000 times the force of gravity.
This force separates the two liquids according to their specific gravities into concentric cylindrical layers, and the solids are deposited against the rotor wall.
The separated liquids are continuously displaced upwards by the incoming mixture, and continuously discharged through their respective outlet ports at the top of the rotor. The layer of accumulated solids that builds up on the rotor wall is cleaned out batch-wise when the centrifuge is shut down.
There are, however, many applications where only the removal of suspended solids from a single liquid is required. Supercentrifuges for such applications are called Clarifiers and are often provided with only one set of discharge ports.
OPEN TYPE SUPER-CENTRIFUGE
his basic Super-Centrifuge is employed for a surprisingly large number of industrial applications.
Applications
The Open Type Super-Centrifuge is used, for example, in the clarification of:
- Dry Cleaner's Spirit
- Cider and Fruit Juices
- The dehydration of Animal Fats
- Water Gas Tar
- Fish Oils
- Ball Pen Ink
It is also used for the preparation of blood plasma, beef broth and sugar syrups.
Can be supplied with special covers for dealing with viscous liquids, such as:
- Gum Arabic
- Gum Thickeners
- Chewing Gum
- Wool Grease, etc.
Materials of Construction : Numerous options are available. If required all parts in contact with material can be of stainless steel or monel.
Additional Information:
- Item Code: 55-LPH-to-4500-LPH
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En block Units
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- Hydraulic oil
- Cutting oil
- Engine test bed oil
- Rolling mill lubricants
- Wire drawing lubricants
For Power Stations
Units with stainless steel bowl, special safety features such as antiflood device and indirect heater are recommended for modern thermal power stations for purification of turbine lubricating oils.
For Human Blood Plasma Fractionation
Both the AS16 and AS26 size machines are ideally suited for fractionation of Blood Plasma wherein the slightest contamination means the loss of a complete batch. Therefore, the three piece frame comprising the pedestal, barrel and swivel head is painted in white to a pharmaceutical finish. Furthermore, the stainless steel contact parts such as the bowl interior in Stainless Steel or equivalent material, the stainless steel covers and certain stainless steel drag components are polished to high sanitary standards to ensure functionally satisfactory performance. In addition, the barrel is preferably jacketed for cooling media circulation and the pulley assembly is fitted with grease packed bearings to ensure a clean, reliable and effective performance.
For Pharma & Bio-technology Applications
Model AS-16 and AS-26 high-G Tubular Bowl Super Centrifuge are built with Sanitary Design Features for seperation of Biological material, and for Biotechnology application requiring BL-1-LS containment of Biohazards.
Features:
- Compiles with cMGP standards.
- All stainless steel wetted parts are electro-polished to Ra < 0.5 microns.
- Inbuilt centripetal pump is provided for foam and aerosol control.
- Variable speed Drive achieves operations between 7500 x G to 17000 x G or 20000 x G depending upon the model of Super Centrifuges.
- Sterlization-in-place (SIP) feature is provided with special vaporitite covers designed to accept saturated steam at 1.0 barG and 1210C, and incorporates a Safety Rupture Disc.
- Clean-in-Place (CIP) feature is provided.
- A dedicated Control Panel is provided with status indicating illuminators, "ON"-OFF Push Buttons, and Auto-Manual Sequence Control of CIP and SIP operations.
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For Bio-Diesel Production
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Features:
- Seperation of Biodiesel from Glycerol+Methanol mixture after transterification.
- Seperation of Biodiesel from Wash-Water in the subsequent bio diesel washing steps.
The machines can be supplied whenever required, with special features for minimizing solvent loss and for mitigating solvent hazards.
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