av-me-wi-02 operation instruction for fluid bed dryer

7/27/2019 AV-ME-WI-02 Operation Instruction for Fluid Bed Dryer

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Department: MaintenanceDOC. No. : AV/ME/WI/002

Page No. : of 4

Issue Date: 01.03.06 Revision No. & Date : 00)-01.03.06

!u"#ect $perating Instruction %or 'ui( )e( Dr*er.

REVISIONSRevision No.

RevisedPages

Revision Description Date ofRevision

00 0 Original Issue 01.03.06

Prepare( )* Approve( )* Aut+ori,e( "*

Maintenance Officer Management Representative actor! Manager

"C#$%%&&'D: &nterna( se On(! "




Page No. : Page * of 4



Operating Instruction

The necessary quantity of air for the drying process is produced bythe fan installed in the upper housing. The air stream passesthrough pre-filters to the air heaters where it is heated to thetemperature preiously ad!usted on the thermostat or thetemperature regulator. The clean and warm air passes through theproduct container" filled with wet material. This product container isequipped with a #.#. mesh through which the air stream flows. Theair streams suspend or fluidi$e the material inside the productcontainer. The e%haust filter bags preent the escape of any

material into the e%haust duct. On account of the intensie airstream" which surrounds each particle with warm air" an e%tremelyquic& and economic drying is possible. The humid air is e%haustedto the outside of room.Operational Procedure:1. Before the or!ing process "egins:

I. 'ill the product into container mounted on the trolley.II. (heel in the trolley and fit the filled product container to the

dryer by means of eccentric leer.III. #et the required drying temperature on the thermostat.I). *nsure that the retarding chamber and product container are

earthed with spring loaded earthing arrangement proided onthe main frame.

). *nsure that the outlet flap is closed +to aoid motoroerloading,.

#. Putting into operation:

I. #et the timer to the required drying time.II. ress the start button.III. The quantity of air supplied is regulated by an outlet flap.

Open this flap slowly in such way as to ensure that thewhole mass is transposed into a state of fluidi$ation. eep

the leer in this position. The material being fluidi$ed can beobsered through the window. If the granular mass issluggish or does not moe when the air flap is opened" thenthe leer must be moed to and fro between open and close







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positions for seeral times until material slides along walls ofcontainer.

I). ut on the heaters/open steam inlet ale.$. %t the end of the or!ing process

I. #ha&e the outlet air filter.II. ower the product container.III. (heel out the trolley with the product container.

Directions:,. 2efore rying 1, 'ill product into product container.

4, 'it product container into dryer. 3, ress product container to housing by means of eccentric leer. 5, d!ust drying temperature on thermostat. , d!ust time to the required drying time. 6, 7lose outlet air flap. 8, ush green button. 9, Open slowly air flap by means of the leer until material isfluidi$ed. eep air leer in this position. This process can beobsered through the obseration window. If product mass is sluggishor does not moe when air leer flap is opened" then the leer must bemoed bac& and forth for seeral times until material slides along wall

or container. :, ut on heaters.B& %fter Dr'ing: 1, #ha&e outlet air filter. 4, ower product container. 3, ;emoe trolley with product container after releasing eccentricand empty the

container.Precautions:

1. The connection of earthling be positie and chec&ed itfrom time to time.

#. *nsure that the container and retarding chamber areconnected to the earthing terminals before eachoperations.

$. In case of electrical heating and non flame proof motor<







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,. The dryer not to be run with alcohol or any otherinflammable solents.2,. The dryer not to be run in atmosphere containingsolent etc." i.e. " the room where dryer is installedshould be free of solents and their apor.

5. #ha&e the filter bags few times during the dryingprocess. This clear the

filter bags from fines to smooth air flow. The air atthe final stage of

drying may be reduced so that fine dust is notformed.

. fter minutes of drying cycle the material is crac&ed toobtain

#atisfactory fluidi$ation.

Reference: Instrument =anual




av-me-wi-02 operation instruction for fluid bed dryer

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