3 replies to this topic

[zjdoran]

Hello,

 

I searched this site before posting but did not find a similar topic.

 

I recently installed a straight-tube coriolis meter on a product slurry line.  The slurry is made up of solid sodium bicarbonate + aqueous carbonate/bicarbonate solution.  The expected density reading is about 0.04 g/cc too low, which distorts our %solids quite a bit.  The orientation is a vertical slip stream off of our main product line.  Flow rate through the device is ~4.5 m3/hr.  Additionally, when we flow pure water through the device, the meter is accurate. 

 

My initial thoughts are:

1. We actually have gas in the line that is not expected (CO2 goes into the reaction for sodium bicarbonate).

2.  Solids are not passing through the device as expected.

3.  We immediately eroded the tube wall, lowering the density reading.

 

Any other ideas?  Any ideas to test these theories?

 

I appreciate your help.

[breizh]

Hi ,

I have been using similar device for same application at the discharge of a cavity pump to evaluate the performance of a thickener prior to feed a pusher centrifuge and the result was great . The model was from E&H  Promass 80F.

 

To share the type of application I'm familiar with .

Breizh

[zjdoran]

Hello briezh,

 

Thank you for the feedback.  Is your meter in-line with the process, or a slip stream off the process line?

 

Regards,

Zack

[breizh]

Hi Zack ,

In line with the process , to calculate the feed to the centrifuge and the % of solid coming from the thickener.

Hope this helps

Breizh