SOIL WASHING REMEDIATION of contaminated sites

Polluted soil washing plant consist of pre-screening feeding system, scrubbing and dissolving system, multigrading system,slurry filtering system,water treatment system, electrical control system. Stone washing plant,Sand washing plant

The Reasons for Too Much or Too Less Foam in Flotation Tank

As one of the important mineral processing equipment, the flotation cell often meets the phenomenon

of unstable foam in the tank, such as too much and too big foam, too less and too small foam.

what is the reason for these problems?
Firstly, we should learn about the generation of foam in the tank.
The foam is created by injecting low-pressure air with an external tool, just as the bubble produced by inflating water with the pipe.
However, the foam produced by air inflation is not stable, and the quantity is uncertain. Therefore, using the foaming agent can increase the foam quantity and guarantee the stability of the foam.

So, what is the main reason for causing too much or too less foam in the flotation cell? That’s the foaming agent. In general, the excess dosage of foaming agent will cause too much and too large foam in the flotation tank, and even sometimes, the foam is too large to reflect light on the surface. On the contrary, the insufficient use of the foaming agent will cause too less and too small foam.

Then again, what is the effect of too much or too less foam on the flotation operation? If the foam is too large or too small, the amount of impurities will be too less, which cannot achieve the expected flotation efficiency. It not only affects the flotation effect, but also influence the final recovery rate.

If you want to know more about our equipments details,please contact us
Zhengzhou Desen Environmental Technology Co., Ltd
sarah@zzdshj.com

1520 IMPACT CRUSHER RUNNING

1520 IMPACT CRUSHER RUNNING

http://www.desenmachinery.com/product/products-2-21.html



Impact Crusher

Max feeding size: 600 mm

Discharging size: 0-60 mm

Power: 220*2 kw

Capacity: 400-500 tph



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rotor of impact crusher

rotor of impact crusher



Impact Crusher

Max feeding size: 300 mm

Discharging size: 0-60 mm

Power: 7.5-300 kw

Capacity: 5-350 tph

Product description: Impact crusher is suitable for secondary crushing rocks with compressive strength of 320 MPa. It widely used in mining, metallurgy, construction, highway, railway, chemistry industry,ect.

http://www.desenmachinery.com/product/products-2-21.html



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DESEN vibrating feeder

Vibrating Feeder

Max feeding size: 750 mm

Weight: 2.8-8 t

Power: 3-22 kw

Capacity: 80-600 tph

http://www.desenmachinery.com/product/products-1-10.html

sarah@zzdshj.com

Iron ore price rally could give BHP, Rio Tinto 30% earnings boost

Iron ore price rally could give BHP, Rio Tinto 30% earnings boost


Spot iron ore prices rose from $75 per tonne to $95 per tonne in the weeks following the Brumadinho dam disaster at Vale’s (NYSE: VALE) Feijao iron ore mine in Brazil, before settling in at about $85 per tonne, according to the latest research on the global iron ore market by the Macquarie Group.

Spot prices are now back up at the $95 per tonne level as lower shipment volumes out of Australia mainly due to Cyclone Veronica have contributed to supply disruptions from Brazil, analysts at the Australian investment bank and financial services company report.

In addition, premiums for high grade ore and discounts for lower grade ore have shrunk since the Brumadinho tragedy, Macquarie points out. Prices have risen by about 35% year-to-date for lower grade ore, while the premium for high grade ore has increased by 23% year to date.

Vale’s share of total shipments from Brazil has dropped to about 50% from a peak of about 90%, the report states. “While initially the quantum of decline was managed by the selling of stockpiles, recent sharp declines shows the extent of the supply disruption.”

The supply/demand dynamics benefit Australia’s iron ore miners.

“At spot prices all covered Australian iron ore miners see a substantial increase in forecast calendar year earnings per share,” the report stated. “BHP, Rio Tinto, and Mineral Resources Inc. see CY19 EPS increase by about 30% each, while the pure-play exposure is highlighted in Fortescue Metals Group and Mt. Gibson Iron as CY19 increases by 60% and 120% respectively in a spot scenario.”

(This article first appeared in The Northern Miner)

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Zhengzhou Desen Environmental Technology Co.,Ltd

www.desenmachinery.com

sarah@zzdshj.com

jaw crusher delivery

jaw crusher delivery

http://www.shuosencrusher.com/en/product/jaw-crusher-shuosen.html

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Shanghai Shuosen Mining Machine Co.,Ltd
www.shuosencrusher.com
sarahzzdshj@gmail.com
sarah@shuosencrusher.com