A bypass diverter box disposed upstream from conventional solids control equipment of a mud system of a drilling rig contains a drilling mud separation unit having a continuous-loop scalper screen that is driven in a continuous loop to separate, convey and discharge large amounts of gumbo, heavy clays and drill solids at the end of the separation unit The flow divider box is a box-like housing with a verter plate, upper and lower baffle plates and a grate that allows drilling fluid or drilling mud to be selectively directed to the mud separation unit to be separated prior to passing to the conventional downstream solids control equipment or allows the fluid to bypass the separation unit and flow directly to the conventional solids control equipment The bypass diverter box baffle plates, diverter plate and grate, and selective utilization of the mud separation unit removes large amounts of gumbo, heavy clays and drill solids from the drilling mud and allows high flow rates to be easily processed by shale shakers and other conventional downstream solids control equipment of the mud system and compliments the drilling operations with respect to changes in the lithology, geological formations, or loss of returns in relation to the gallons pumped or folume of drilling fluid or drilling mud entering the bypass diverter box

Bypass diverter box for drilling mud separation unit

In a hydro-jet housing the form block, possibly with core, is stripped of mold sand by means of a high-pressure water jet. The sand is fed in the form of a muddy pulp to a first hydrocyclone, where the water is largely separated and is supplied for the formation of new muddy pulp. The sand flows into a scrubbing mechanism for knocking off its binding material, which has settled as a coat around the sand grains. After being scrubbed, the sand is fed to a second hydrocyclone for hydro-extracting water and dislodged binding material from the sand. The sand is then dried and cooled and is available for further use. The contaminated water is neutralized with flue gas, after which a flocculation agent is added to it and the water is then purified for reuse in a settling tank and possibly in a filter.

Method and apparatus for removing sand from castings

A modular ore processing system for concentrating ores comprising, a plurality of separate modules (1, 2, 3, 4, 5, 6, 6a, 7) constructed so as to be serially arranged to form a feed processing system for concentrating a desired material in the ore, wherein the modules are individually transportable to a processing site to be operationally coupled to form the modular ore processing system.

Modular ore processor

A coal beneficiating process for the efficient production of high quality coal at higher yields through a concept of stage separation which requires a minimum of crushing.

Coal beneficiating process

A process for heavy medium beneficiating of coal, including particles in the 28 x 150 mesh range. As-mined or crushed coal is washed and screened to prepare a feed material whose average coarseness is greater than about 150 mesh. This feed is combined with a heavy medium, such as water and magnetite, and cycloned. Cyclone overflow is screened, drained and rinsed to separate returnable heavy medium, fines (both heavy medium and ore) from coarse product. Fines are processed through a magnetic separator to separate the heavy medium from a non-magnetic fines ore-water fraction. The ore-water fraction is screened to separate a fine product and recirculatable water. Cyclone underflow is similarly screened to separate returnable medium, fines (medium, gangue and ore particles) from coarse gangue. The fines are concentrated in a densifier and then magnetically separated into a magnetic and non-magnetic fraction. The magnetic fraction is reused as heavy medium and the non-magnetic fraction is screened to recover recirculatable water and a particle fraction which requires further processing.

Heavy medium beneficiating process

Apparatus and method for separating and recovering relatively coarse mineral particles and relatively fine mineral particles from a slurry containing said particles

William Benzon

Papers

Apparatus and method for separating and recovering relatively coarse mineral particles and relatively fine mineral particles from a slurry containing said particles