Thursday 26 September 2013

SOP FOR OPERATION OF NUTSCHE FILTER



I.                   PURPOSE
To define the Standard Operating Procedure for Operation of Nutsche filter.
II.                SCOPE
This procedure is applicable for Operation of Nutsche filter in Production Department at Unit-V
III.             RESPONSIBILITY
Assistant, Executive - Production
IV.             ACCOUNTABILITY
Head - Production
 V.       PROCEDURE:
1.0           Check status of the Nutsch filter from equipment status, it should be “CLEANED”    
2.0              Ensure that bottom valve and vacuum inlet valve is closed.
3.0              Update the equipment status.
4.0              Enter the Operation starting time in the equipment usage log in
            Format No. F01/SOPPR077-00.
5.0              Wear personnel protective equipments as required.
6.0              Fix the filter cloth.
7.0              Rinse the filter cloth with Approximately 5 liters of purified water / corresponding solvent, which is to be used in the respective reaction mass to be filtered.
8.0              Apply vacuum to the Nutsche filter to suck out the rinsed purified water / corresponding solvent.
9.0              Close the vacuum inlet valve and release the vacuum by opening the vent valve.
10.0          Check the integrity of the bag.
11.0          If any vacuum leakage is observed, replace the bag.
12.0          Feed approximately 20 Ltrs of solution from the Reactor / Receiver.
13.0          Open vacuum inlet valve to Nutsch filter for 5 Min.
14.0          Close the vacuum inlet valve and release the vacuum by opening the vent valve.
15.0          Visually check the clarity of the filtrate.  It should be clear.
16.0          If filtrate is not clear, recheck the Nutsch filter bag for proper fitting.
17.0          If filtrate is clear, close the vent valve.
18.0          Ensure that the bottom valve of the Nutsch filter is connected to filtrate receiving reactor / receiver
19.0          Apply vacuum to the receiving Reactor / Receiver.
20.0          Start feeding of product and open the bottom valve of Nutsch filter.
21.0          Open the receiving valve of the Reactor / Receiver to collect the filtrate.
22.0          If feed basket is filled with solid cake, stop feeding of the product.
23.0          Suck-dry the solid cake and unload as per Batch production and control record.
24.0          During suck drying of solid cake, make the cake uniform by using SS / PP scoop to avoid air gaps in the cake.
25.0          Carry out solid cake washings as per Batch production and control record.
26.0          During solid cake washing, filtrate clarity must be checked and it should be clear.
27.0          Suck dry the washed material for required time as per the Batch production and control record.
28.0          After transfer of filtrate to receiving Reactor / Receiver is completed, close the bottom valve of the Nutsch filter and receiving valve of the Reactor / Receiver.
29.0           Release vacuum from receiving Reactor / Receiver.
30.0          Unload the solid cake as per the instruction given in Batch Production and Control Record.
31.0          Update the Equipment status as ‘TO BE CLEANED”.
32.0          Enter the operation completion time in the equipment usage log in                                Format No.: F01/SOPPR077-00.
VI.      REVISION SUMMARY

Version No.
Revised on

Reason for Revision

00

NA

NA

END OF THE DOCUMENT
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4 comments:

  1. vijaykumar21 April 2020 at 02:01

    please provide cleaning procedure

    ReplyDelete
    Replies
    1. Unknown10 September 2020 at 21:31

      Ensure that the Nutsch filter is empty and display the status board as “U/ Cleaning”.
      Open the Nutsch filter and remove the filter bag.
      Connect the pipe DM water line and the other end of the pipe in a Nutsch filter.
      Open the DM water controlling valve and start flushing the Nutsch filter with DM water.
      Continue flushing of DM water in all corners of the Nutsch filter till it is visually clean.
      Take 10 to 15 L of Methanol into a carbyl. Take a mug, and flush the Nutsch filter with methanol to replace the water.
      Continue running the Nutsch filter for 5 min and then stop it.
      Wipe out the outside of the Nutsch filter with a clean and lint free cloth.
      Check the Nutsch filter visually and ensure it is cleaned appropriately, if any adhered material is noticed, continue cleaning operation as specified above and check it visually.
      Disconnect the transfer pipe and keep it at a designated place.
      Check the bag visually. If any damage is noticed, replace it with a new bag. Enter the filter bag change details in the filter change record as per SOP.
      Properly fix the Nutsch filter.
      Apply the Nitrogen Nutsche filter for 5 minutes for drying and set the filter bag.
      Update the cleaning status board as “Cleaned and Ready for use”.
      Record the cleaning details in the relevant checklist & BPCR.
      Frequency: Cleaning shall be performed before starting the batch.
      Note: If the Nutsch filter is idle for more than 24 hours, it should be cleaned again before using the Nutsch filter.

      Delete
  2. Hari17 May 2020 at 06:35

    This comment has been removed by the author.

    ReplyDelete
  3. nany15 September 2020 at 09:35

    Thank you for writing such informative blog.
    If you are looking for agitated nutsche filter then do consider ankita technologies.

    ReplyDelete

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