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Fluid Bed Processors |
A Carman Vibrating Fluid Bed Processor is the perfect way to heat, cool, dry, or moisturise your bulk solid material. By passing controlled process air up through the material bed of the Vibrating Fluid Bed Processor, the material is percolated like a gently boiling fluid (see photo). The solid particles undergo intensive intermixing, as process air surrounds each particle, permitting direct heat and/or moisture transfer between the air and the particles. It is this intimate contact between air and material particles which makes a fluidised bed the most efficient convection heat and moisture transfer process.
The Carman Vibrating Fluid Bed Processor offers you:
- Process flexibility
- Lower operating costs
- Lower initial capital expenditure
- More reliability, less downtime
- Lower maintenance costs
Individually Designed Based On Testing
Your Carman Vibrating Fluid Bed Processor will be designed specifically for your application. With complete laboratory testing facilities, Carman can determine the exact size of the equipment required to achieve your desired results. |
| Carman Testing Laboratory |
Each Carman processor sold with laboratory testing includes a process warranty, insuring the unit will perform to your requirements.
We will also work with the cost conscious manager to improve operating efficiencies by suggesting appropriate design scenarios for your process, such as exhaust air recycling, air-to-air heat exchangers, heating/cooling coils submerged in fluidised bed for additional direct heat transfer. |
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Optional Features
- Insulation is available for high temperature applications
- Sanitary construction may be specified to meet Australian hygiene standards.
- Multiple zones allow for two or more processes with one Vibrating Fluid Bed Processor.
- Special decks such as trirod, cascading, or shielded hole construction are available for application where required.
- Special coatings are available to satisfy corrosive problems, sticky products and other special needs.
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1 - Exhaust Hood
Process air passing through the material is collected in the exhaust hood and removed. The extra large Carman hood, available with single or multiple outlets, minimizes undesirable entrainment of fine particles. Available features include sampling ports, high temperature glass inspection windows and access doors. |
2 - Plenum Chamber
Air enters the plenum chamber through air intake nozzles on either side of the unit. Intake nozzles are furnished complete with flexible rubber socks for easy installation and alignment. Air is evenly distributed through the deck and material to provide uniform fluidisation and heat transfer. Clean out door and drain are included at the discharge end. |
3 - Isolation System
The Carman design features heavy duty, solid rubber or steel coil isolation springs designed to minimize transmitted vibrations. Structural steel supports are included for secure floor mounting. |
4 - Force Vector Drive
Counter-rotating shafts with eccentric weights provide the harmonic driving force for the Carman Vibrating Fluid Bed Processor. Adjustable attack angle, frequency and stroke provide maximum conveying speed flexibility. Vibrating service bearings are conservatively sized for reliable, low maintenance operation. |
5 - Adjustable Weir
Allows precise control of material depth; lowers for complete cleanout. |
6 - Drilled Hole Distributor Plate
Solid steel construction of the Carman distributor plate ensures ruggedness and durability. One piece design has no joints to hamper material flow. Individual design of drilled hole pattern allows for most efficient combination of pressure drop and hole velocity. Produces uniform fluidisation with no channelling or product weepage through deck. |
7 - Material Infeed and Discharge Spouts
Spouts are designed to accommodate your adjacent material handling equipment. Flexible rubber socks are included with stainless steel band clamps. |
| Vibration adds several benefits |
- Vibration provides the necessary agitation to assist fluidisation of some materials which might not otherwise fluidise.
- Vibration provides uniform forward movement of the material beds, so the material is processed on a first-in/first-out basis. Variances in particle residence time are thereby reduced, ensuring uniform processing of the material.
- The positive forward movement of the product through the heat transfer area eliminates deck pluggage and allows the unit to be self-cleaning at the end of each run.
- Startup and shutdown are simplified.
1. The Supply-side Equipment
The equipment required for this portion of the system depends upon the process air requirements and the available in-plant resources. Carman can furnish components such as centrifugal fans, air filters, gas or oil burners, steam coils with control valves, water chiller packages, humidifers, dampers, air flow measurement and system ductwork.
2. The Vibrating Fluid Bed Processor
The Carman Vibrating Fluid Bed Processor is designed to adapt easily to any type of air handling equipment involved in the system. The adjustable features of the Carman design allows the Vibrating Fluid Bed Processor to be altered in the field, should application requirements change.
3. Process Control system
Carman has developed several precise and economical control methods. Carman can provide the complete control package or engineering only for interfacing with plant computer control systems.
4. The Exhaust-Side Equipment
Small sized particles from your product will generally be entrained in the exhaust air from the Vibrating Fluid Bed Processor, and must be removed with an air cleaning device. Carman can furnish cyclone dust collectors and bag houses for this purpose. Or, if you prefer to provide these items, Carman can recommend the equipment necessary for the anticipated dust loading. |
| Industry Applications |
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