Clinker Loading To Hopper
How is the clinker unloaded from the barge? If it is by grabs, size of grab and hopper size and top opening size, all are required required for sizing the dust collector.
These is also an incidence of fugitive dust as clinker drops into hopper.
Can you give some more details of the system? ■
Re: Dust Suppression For Clinker Unloading
The clinker is transfered by belt conveyor from barge.
Then the belt conveyor that is placed on the barge. Then the clinker will directly dump to the receving hopper placed in the dock and down to another belt convenyor.
So the problem is the dust spread during loading from belt convenyor of barge to hopper with unenclosed opening.
Then A enclosed cover will be installed for the hopper and a dust collector will be used to extract dust from the cover.
What I want to ask is how to size the dust collector. Which parameter should I concern?
thank you ■
Re: Dust Suppression For Clinker Unloading
Enclose the conveyors. Enclose the hopper as much as possible. Measure the openings where dust can escape and extract exhaust air at 1.0 m/s velocity through the openings. This will give you the exhaust quantity.
Ask a dust control contractor to give you a quotation.
Michael Reid. ■
Re: Dust Suppression For Clinker Unloading
Originally Posted by Michael Reid
Ask a dust control contractor to give you a quotation.
Michael Reid.
so don't consider the laoding rate of clinker is no problem? Because I don't know how to account this factor and ask here.
many thanks ■
Dust Suppression For Clinker Loading
Please open following thread. I had given some published data on dust generated at transfer points.
https://forum.bulk-online.com/showthread.php?t=13451
I suggest that you consider installing a dust collector on land and take duct alongside the conveyor with transfer point hopper to the barge.
Dust generated is influenced by tonnage rate of clinker handled. ■
Re: Dust Suppression For Clinker Unloading
Originally Posted by Vinayakhttps://forum.bulk-online.com/showthread.php?t=13451
I suggest that you consider installing a dust collector on land and take duct alongside the conveyor with transfer point hopper to the barge.
Dust generated is influenced by tonnage rate of clinker handled.
thank you for your reference.
My focus is the open hopper. The size of hopper is 64m3.
I should better to consider the displacement effect during clinker loading.
The clinker loading rate is 1000tph and so displacement volume is about
(1000tph)*(1000kg/ton)/(1290m3/kg) = 13m3/min
To have 3 time the displacement volume, flowrate = 39m3/min.
Suction area = (39m3/min) / (60m/min) = 0.65m2
please advise my calculation ■
Dust From Open Hopper
You can consider installing Burley Baffles on top of hopper. http://www.mideco.com.au/mburnley.htm
BURNLEY BAFFLES
Main problem with open hoppers is fugitive dust. It needs to be suppressed at the point of origin. These baffles can do the work. Your dust collector pipe will provide suction in hopper section under the baffles ■
Re: Dust Suppression For Clinker Unloading
Dear Calvin.wck,
The throughput rate of the clinker is only important for the materials handling systems, not the dust handling systems.
As Michael said, if you calculate the total open area around the transfer and multiply that by 60m/min then that is the volume flow rate for the dust handling system.
The total open area can be calculated once you have measured all dimensions of all the openings in the transfer point; for example the hole between the top of the klinker lying on the conveyor belt to the steel chute inlet, the width of the steel inlet opening and so on. ■
Re: Dust Suppression For Clinker Unloading
Another thing. Burnley baffles are very good at suppressing dust at bulk unloading hoppers, emptying of dump trucks or train wagons into large open hoppers. They are not suitable for continuous material flow in conveyor systems.
Michael Reid. ■
Re: Dust Suppression For Clinker Unloading
thank all first.
Neet to further clarify the situation. The barge cannot be fixed and cause the belt conveyor oscillate randomly above the hopper.
Therefore, chute that is fixed on the belt conveyor of barge will oscillate as well. This is the difficulties.
I will only have DC in the dock and prevent the dust. My solution is installed a cover (like pyramid ) on the hopper and with a opening for a flexible chute/spout.
A suction point is created onto the cover, rather than the transfer point and a negative pressure to extract the dust about the chute.
The opening area maybe only is the belt tranfer point if have good sealing for the cover and hopper. This would not be large, around 20-60m3/min.
In contrast to the clinker volume, it will dispace the air in the hopper and leak out through the transfer point. It estimated to be 13m3/min.
The conclusion is that the larger flowrate is the design flowrate.
Please comment. ■
Dust Suppression for Clinker unloading
I would like design a dust collection system for loading clinker into hopper.
A belt conveyor that is placed on the barge for clinker unloading. The clinker is transfered by belt conveyor from barge to a receving hopper in dock. Then the clinker will go down to belt convenyor system and finally to clinker silo.
So the problem is the dust spread during loading from belt convenyor of barge to the hopper with unenclosed opening. I will diesign an enclosed cover for the hopper and a dust collector, which will be used to extract dust from the cover.
What is the design parameter for the flowrate of the dust collector?
Is the receving area of hopper or clinker loading rate or suction area?
thank you ■