HydroCyclones

Grinding and Classification Circuit

Our EXAMPLE Grinding and Classification Circuit is designed to grind 500 tonnes of ore per day, operating 24 hours per day, with an availability of 95%.  This circuit will grind -5/8″ material from the Crushing Plant, classify the slurry in one of two cyclones, and pass 70% of the minus 200 mesh material to the mill feed Thickener Circuit at a rate of 22 mtph.
This section is intended to be read in conjunction with the Flowsheet and Piping and Instrument Diagrams.

The Grinding and Classification Circuit is designed to the following criteria:

F80 Feed Size 80% minus 7/16&#8243

←   Read The Full Metallurgy Article

By | 2017-03-19T05:56:55+00:00 February 1st, 2016|Categories: Classification, Concentrator Manuals/Procedures, Flowsheets & Flowcharts, Grinding, HydroCyclones, Pumps and Pumping|Tags: |Comments Off on Grinding and Classification Circuit

How to Improve Cyclone Separation

Good cyclone separation depends upon control of pressure drop, pulp density and apex size. The ‘pressure drop’ may vary but should not change rapidly, and is held at safe levels by keeping an adequate sump level. A falling sump level causes cavitation in the pump and reduction in feed rate; pressure drop in the cyclone falls and solids report increasingly to the overflow until

←   Read The Full Metallurgy Article

By | 2017-03-19T06:33:10+00:00 January 10th, 2016|Categories: Classification, HydroCyclones, Tools of a Metallurgist|Comments Off on How to Improve Cyclone Separation

Hydrocyclone Feed Pump & Pressure PSI vs Operating Parameters

For a hydrocyclone to work at peak efficiency the volume of slurry and the feed pump delivery pressure must remain constant. If the cyclone feed pump is allowed to SURGE, the up and down pressure will cause poor separation at the point of high and low operating pressure.
There is a cycle to a surging pump box that causes this pressure fluctuation.Cyclone

First the pump pumps all of the slurry out of the pump box. When the box becomes empty the pump gets some air which results in an air lock. The air lock prevents the slurry from entering the pump’s casing. The cyclone now does not have any feed

←   Read The Full Metallurgy Article

By | 2017-03-19T14:15:27+00:00 August 7th, 2015|Categories: Classification, Grinding, HydroCyclones, Pumps and Pumping|0 Comments

Troubleshooting Hydrocyclones

Here is a simple Table for Troubleshooting Hydrocyclones.

Troubleshooting_Hydrocyclones https://rsteyn.files.wordpress.com/2010/07/cyclones-basics.pdf

hydrocyclone_internal_working_ www.metprosupply.com

Other Hydrocyclone Troubleshooting Tips:

Underflow is too wet
Apex is too large
Vacuum control valve is open too far
Inlet pressure is too low
Pump is cavitating

Underflow is too dry (cone is plugging)
Apex is too small.
Vacuum control valve is closed too far.
Percent solids is too high.

Too many fines in the underflow
Close the vacuum control valve slightly.
Install a smaller apex.
No coarse material in the feed.

Underflow

←   Read The Full Metallurgy Article

By | 2017-03-17T19:47:43+00:00 August 7th, 2015|Categories: Classification, HydroCyclones|0 Comments

Hydrocyclone Manufacturers

If you are looking for an affordable Hydrocyclone Manufacturers, contact us.

Hydrocyclone Manufacturercheap Hydrocyclone ManufacturersHydrocyclone_Manufacturer's_CycloPack

Hydrocyclone is a continuous device that utilizes centrifugal force to accelerate the settling rate of particles. When feed slurry enters the hydrocyclone tangentially under pressure, as result of the high centrifugal forces, particles coarser than the “cut point” size migrate into a primary vortex adjacent to the wall and move forward to discharge with a small volume of water via the spigot. Particles finer than the “cut point” size migrate into a secondary upward-moving vortex, along the axis

←   Read The Full Metallurgy Article

By | 2017-03-17T19:47:44+00:00 August 7th, 2015|Categories: Classification, HydroCyclones|0 Comments

Hydrocyclone Working Principle

hydrocyclone working principleHydrocyclone Operating PrincipleThe third type of classification used in mining is the Hydrocyclone, commonly called a Cyclone. Unlike the others it has no moving parts and is worked in conjunction of another piece of equipment, a pump. To understand the Hydrocyclone Working Principle we must first know its components.  Beginning at the top, there is the OVERFLOW DISCHARGE.

Unlike the rake and spiral classifiers, the overflow of the cyclone is the exit point for the fine material instead of the other way around as it is in the case of the other two. Extending from the overflow discharge into the body, which is the

←   Read The Full Metallurgy Article

By | 2017-03-17T19:47:57+00:00 August 6th, 2015|Categories: Classification, HydroCyclones|0 Comments

Hydrocyclone Operation

hydrocyclone Hydrocyclone in Operation

hydrocyclone Cyclone in Operation

The hydrocyclone operation consist of having the ore slurry pumped into its feed inlet, the ore is then separated by size with the fine material coming out of what is referred to as the “OVERFLOW” via a Vortex Finder. The mineral that still requires grinding is named the “UNDERFLOW” via the Apex Finder.

These two terms, the “overflow” and “underflow” will become very familiar to you. They are used where ever the slurry is “being separated by grind size, density, or mineral content. In this

←   Read The Full Metallurgy Article

By | 2017-03-19T14:24:40+00:00 August 6th, 2015|Categories: Classification, HydroCyclones|0 Comments