Dust Cement control

Hello everyone.

I would like to know some ideas about dust cement control. In other words I am working in a cement plant in which pulls out the cement with a open screw fron the silos. The screw has 12ft long and the dust that it makes when is working is not acceptable or un-safetly for my employees. So, the question is do you have any idea how can I cover this screw feeder in order to avoid excess of dust? The screw is installed underground in other words in a concrete hole.

Thank you

Gord

Cement Dust Control.

Posted on 9. Jan. 2005 - 11:31

Can you post a sketch of the screw conveyor and the equipment which it delivers the product to (presumably a belt conveyor transfer)? This will give a better understanding of the process and make suggested solutions easier.

Michael Reid.

Better Picture Of The Problem

Posted on 17. Jan. 2005 - 07:43

This is a better picture of my problem. Too much dust without control...

Thank you guys

Attachments

mvc-010e (JPG)

Gord

This Is The Screw

Posted on 17. Jan. 2005 - 07:44

This is the screw that I need to cover in order to avoid excess of dust.

Thank you

Attachments

mvc-006e (JPG)

Gord

Any Idea?

Posted on 27. Jan. 2005 - 05:45

Guys

I really need some ideas. I need to cover up the screw that is showing in the picture. So, please I will acept suggestions. Any company that could do this task.

Thank you.

Attachments

mvc-005e (JPG)

Gord

Cement Dust Control

Posted on 27. Jan. 2005 - 06:24

Gord,

The pictures you posted do not explain the problem. There seems to be a rotary valve but there is no explaination of how the system works. Does the rotary valve come before or after the screw conveyor? Please provide a sketch which shows the equipment in sequence and the material flow.

Michael Reid.

Re: Dust Cement Control

Posted on 18. Feb. 2005 - 12:19

Gord,

From your description, it seems that the screw is U shaped, it does not have a cover, and is creating dust because it is running at a fast speed. You could reduce dust by 1) installing a cover plate on the top of the screw conveyor, and 2) by reducing the screw speed if a lower feed-out rate is acceptable.

If my understanding of your design is wrong, you may like to describe the design in more detail.

Regards,

A. T. Agarwal

Consulting Engineer

Pneumatic Conveying Consulting Services

polypcc@aol.com