Wear Protection on Fan Impeller

Posted in: , on 18. Feb. 2013 - 05:58

Dear All,

We are planning to install a Dust Extraction System at Feed End of Indurating Machine in one of our Iron Ore pellet plant. Dust Extraction system will be Wet Scrubber with ID fan. Since iron ore dust is very abrasive & sticky (because ID fan is after the scrubber) we are planning to provide wear protection on the Fan impeller. Wear Protection will be hard facing (3mm, chromium carbide) with wear liners (5mm, IS 2062 Gr.A) on 100% working area of impeller.

Please suggest me any economical/ better solution for this application other than the above mentioned.

Thanks in advance.

Pavan Kumar.

Stitched Up This Time.

Posted on 18. Feb. 2013 - 01:13

This thread has about as much to do with bulk handling as it has to do with trout fishing.

You should ask your fan supplier what he thinks about whirling liners around and maintaining some semblance of balance.

Stitched Up This Time.

Posted on 18. Feb. 2013 - 01:27

Dear louispanjang,

Thanks for your suggestion.

Expecting positive respose from bulkholics.

Regards,

Pavan.

Wear Protection On Fan Impeller

Posted on 19. Feb. 2013 - 02:12

This is a I.D fan so why does it need special wear protection? The air should be clean enough so that abrasion will not be a problem (depending on the collecting efficiency of the scrubber).

The air will be very moist however and there will always be some muddy water carry-over at the fan inlet. Make sure that the fan supplier selects a radial tip impeller to limit dust build-up.

Michael Reid.

Roland Heilmann
(not verified)

Wear Protection Is Not Everything

Posted on 19. Feb. 2013 - 10:01

Dear Mr. Kumar,

it seems from your request, that you consider it possible that dust laden air passes the scrubber system. At least sometimes. This should not happen, it would be rather adviseable that a pre-cleaner (cyclone) should be installed. Pls. consider Mr. Reids advice, additionally the liner design might lead to further dust build-up pockets & corners.

Personally i consider it difficult to correctly balance a fan with replaceable liners under heavy duty conditions & on-site maintenance restrictions.

However from the data supplied it is not possible to understand your design decision, so perhaps it is correct to assume that you can still reconsider and perhaps choose a system more adapt to your requirements. Wet scrubber systems have significant benefits, but these are paid for with rel. high operating & maintenance cost. Are the technical benefits equal to your systems requirements, or are there gadget properties, not truly required from operational point of view?

Last point: If you want to have a reliable system, consider the impact between the utilization of a "brand new idea" versus a proven turnkey solution supplied by a well known manufacturer.

Know-how from experience is everything for a smooth operation.

Regards

R.

Wear Protection On Fan Impeller

Posted on 21. Feb. 2013 - 12:50
Quote Originally Posted by Michael ReidView Post
This is a I.D fan so why does it need special wear protection? The air should be clean enough so that abrasion will not be a problem (depending on the collecting efficiency of the scrubber).

The air will be very moist however and there will always be some muddy water carry-over at the fan inlet. Make sure that the fan supplier selects a radial tip impeller to limit dust build-up.

Michael Reid.

Dear Mr. Reid,

We have selected Backward inclined blade profile for this application to avoid dust build up. Since fine dust will not be removed in the wet scrubber we have considered wear protection on the impeller.

Thanks,

Pavan.

Wear Protection On Fan Impeller

Posted on 21. Feb. 2013 - 11:08

Pavan,

Your backward-inclined impeller will tolerate some dust carry-over and will be more efficient than a radial tip impeller. But, you should also expect the dust to be moist. Make sure the fan casing has access doors to allow regular inspection and cleaning.

Michael Reid.

Alumina Ceramic Tiles

Posted on 8. Mar. 2021 - 05:42

We make alumina ceramic tiles which can be fixed on impeller for wear protection.

More info: https://aluminaceramics.wordpress.com

CBC Ceramics, supplier of alumina ceramics. [URL="http://www.cbcceramics.com"]www.cbcceramics.com[/URL]

Alumina Ceramics, Zirconia Ceramics & Zta

Posted on 13. Jul. 2021 - 03:23

Wear resistant ceramic lining – Alumina, zirconia & ZTA

Ceramic grinding media – alumina & zirconia

Steel & rubber backed ceramic plate

Pulley lagging

https://aluminaceramics.wordpress.com/

CBC Ceramics, supplier of alumina ceramics. [URL="http://www.cbcceramics.com"]www.cbcceramics.com[/URL]