Summary of Contents for Cole Parmer Techne IFB-201
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Industrial Fluidised Bath System IFB-201 Instruction Manual Version 9...
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IMpOrtant SuppleMentary SaFety InFOrMatIOn Introduction Techne fluidised baths are safe and effective equipment when installed and operated correctly in accordance with the user manual. However, if used incorrectly they can pose a safety risk. Techne have designed all models of fluid- ised baths to protect operators from hazards but users should pay attention to the following points.
SaFety anD InStallatIOn Please read all the information in this booklet before using the unit. WarnIng HIGH TEMPERATURES ARE DANGEROUS: they can cause serious burns to operators and ignite combustible material. Techne have taken great care in the design of these units to protect operators from hazards, but Operators should pay attention to the following points: •...
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InStallatIOn This Techne Industrial Fluidised Bath (IFB) is designed to be operated as a permanently connected piece of equipment and must be installed by a fully qualified electrician with experience of installing 3 phase equipment. The IFB must be installed with an appropriately rated switch and/or circuit breaker included in the building installation.
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guarantee The unit is guaranteed against any defect in material or workmanship for the period specified on the enclosed guarantee card. This period is from the date of purchase, and within this period all defective parts will be replaced free of charge provided that the defect is not the result of misuse, accident or negligence.
OperatOr SaFety It is important that only suitably trained personnel operate this equipment. It must also be used in accordance with the instructions contained in this manual and with proper safety standards and procedures. It is imperative that all personnel who may come into contact with our equipment have access to our literature so they can ensure their safety.
general DeSCrIptIOn The fluidised bath employs the principle of fluidisation of a mass of finely divided inert particles by means of an upward flow of gas. A state of fluidisation is achieved when the individual particles become microscopically separated from each other by the moving gas. This “fluidised bed” of particles has unusual properties which differ markedly from either those of the gas or of the solid particles.
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necessary to decrease the amount of air supplied to the bath during the heat up period to ensure that the bath is correctly fluidised at all times. A control system with automatic air control is also available. This system is designed to automatically adjust the fluidising air flow rate as the bath heats up.
teChnICal SpeCIFICatIOn Temperature range 50°C to 600°C Temperature control stability at 450°C +5°C Temperature uniformity at 450°C 10°C Internal dimensions length 500mm width 220mm depth 515mm working depth 330mm 395mm from porous plate to top of media maximum media depth when fully loaded and fluidised.
INDUSTRIAL FLUIDISED BATH SYSTEM 100mm Ducting Cyclone Dilution 200mm Flue 150 to 100mm Reducer (when required) Fig 1 Scrubber Caustic Doser Fluidised Bath Collection Afterburner Bath INSTALLATION Mount the fluidised bath in the position where it is to be used. It is important to ensure that the bath is level, otherwise it will fluidise incorrectly.
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Should the fluidised bath be stored for long periods of time under damp or humid conditions, moisture maybe absorbed by the alumina which is hydroscopic. To avoid violent fluidisation which occurs when damp alumina is heated above 100°C, operate the bath for a period of approximately 8 hours at 90°C prior to operation at elevated temperatures.
e) Measure the fume concentration within the fume extraction system using an explosimeter and ensure that the Lower Explosimeter Limit (LEL) is not exceeded. The fume concentration may be diluted by fitting a dilution tee into the extraction ductwork directly after the fluidised bath. Air may then be induced into the system to dilute the effluent gases.
Fume Cleaning When used for processing items which may emit toxic or inflammable fumes, it is essential that an adequate fume extraction system be installed. A typical schematic diagram consists of the following components: An extraction hood that fits over the top of the fluidised bath to provide a peripheral extraction system. Any fumes entrained from above the bath are passed to the effluent gas extract duct.
OperatIOn To set the temperature controller to the required operating temperature, switch on the electrical supply which will illuminate the power and cut-out indicators. Then set the required temperature, by using the up and down arrows on the Eurotherm controller. Depress the reset switch to initiate the system and extinguish the cut-out indicator.
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For older units the following control parameters have been factory pre-set on the Eurotherm 807:- High Alarm Hi Al 630°C 1166°F Low Alarm Lo Al 0°C 32°F Deviation Alarm D. Al 630°C 1166°F Proportional Band Integral Time 124 sec 124 sec Derivative Time 3 sec 3 sec...
Special operating procedures for use when removing plastic residue The industrial fluidised bath detailed in this manual is suitable for “burning off” plastic residue from plastic machine tools, and is effective on the full range of polymers. In addition, the bath is also effective on rubber, epoxy resins and various paints.
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The following table details recommended operating temperatures for particular polymers. The temperatures quoted should be used as an initial guide. The ideal operating temperature will vary depending on the size of the components being cleaned and the amount of material being removed. In general temperatures below 400°C should be avoided to obviate the danger of the polymer melting and sinking to the bottom of the bath where it may block the porous plate.
MaIntenanCe The aluminium oxide fluidising medium, not being degradable, will only require replacement when losses occur due to attrition and spillage, or contamination with inert pigments, fillers or acidic by products from the cleaning process. Fluidising medium lost through entrainment in the exhaust may be collected in a cyclone trap.
The fume extraction system (if used) should be regularly maintained. The cyclone trap collection bin should be emptied at the end of each days use; the collected fluidising medium being returned to the fluidised bath. It is important to ensure that the air tight seal between the cyclone and collector bin is remade.
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C) MOnthly IntervalS 1) Empty the bath and inspect it for signs of corrosion, especially pitted surfaces and flaking scale. The inside should be wiped out with a rag wetted with 5% washing soda (sodium carbonate) solution. 2) Screen the medium through a 50 to 70 mesh sieve before returning it to the cleaned bath. This removes scale, agglomerated medium, char, undegraded polymer and lost parts and helps maintain a good quality of fluidisation.
Fault FInDIng Any service or repair work should only be carried out by a trained electronic or electro mechanical technicians. Untrained personnel should not attempt to dismantle this equipment. If the cut-out indicator fails to extinguish when the reset switch is depressed, check the temperature of the fluidised bath to determine whether the bath has overheated and operated the temperature cut-out.
ACCESSORIES AND SPARE PARTS Optional Accessories Please visit www.techne-calibration.com for a full list of available accessories. Spare Parts Please contact your local sales specialist or email cpspares@coleparmer.com to enquire about available spares...
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