Rock Crushers fill the duty of rock size reduction and can be classified in various stages of duties:
- Primary crushing is the first crushing stage,
- secondary crushing is the second,
- Tertiary crushing is the third,
- Quaternary crushing is a rare forth stage of rock crushing,
Coarse crushing includes crushing operations discharging at sizes 4- to 6-in. or coarser; intermediate crushing comprises operations taking feeds 6- or 8-in. maximum and making products down to -1/2″ or 3/8″. Fine crushing is reduction
The flowsheet in this study illustrates the general practice in the United Kingdom. A large number of coal preparation plants have been established by the National Coal Board during the past 10 years. The primary consideration is to achieve a maximum recovery of low ash coal. The secondary consideration is to reclaim the plant water and avoid
LABORATORY AIR CLASSIFIER OFFERS DRY SEPARATION DATA ON SMALL-SCALE
One of the problems confronting many laboratories handling dry grinding and separation problems is the proper method of sizing the products.
To meet this need, Equipment Company has developed the Laboratory Air Classifier for dry materials. The unit is available in two sizes.
Laboratory Solvent Extraction and Stripping Units Evaluate Process Prior to Commercial Size Installation
The Laboratory Solvent Extraction and Stripping Units provide a completely visual control of the solvent extraction process. There is great flexibility in regulating speed of agitators, recirculation of the organic phase or aqueous phase.
This study deals with an ore containing coarse and fine free gold associated with arsenopyrite, pyrrhotite, pyrite and graphite in a quartz and slate gangue. The sulphides and graphite constitute 10 to 12% of the ore.
Treatment required utmost economy. The flowsheet was developed from batch and pilot tests with the required flexibility to permit
Susquehanna-Western, Inc. Uses Spiral Classifier For Quenching Unit
A 36″ x 19′-10″ Spiral Classifier is used for quenching an 800°F calcine at the Karnes County, Texas, uranium mill of Susquehanna-Western, Inc.
The coarse —1½” x 0″ hot calcine is fed directly to the Spiral Classifier at the rate of 12.5 tons per hour.
The world demand for gold and international economic pressures for an advance in price have accelerated interest in gold and silver production. Many opportunities exist throughout the world for small cyanide plants both for production and pilot operations, especially in areas not easily accessible, and where labor and local costs are on a level for
An eddy current is a circulating electric current induced within the body of a conductor when that conductor either moves through a nonuniform magnetic field or is in a region where there is a change in the magnetic flux. Typical currents of this sort resemble in form the eddies in flowing streams of turbulent water, hence, the name eddy currents.