The invention comprises a system for wet screening of oilwell proppant at the wellsite to provide a controlled and controllable amount of properly sized and screened proppant and fluid to a frac fluid blending system.

The invention comprises a system for wet screening of oilwell proppant at the wellsite to provide a controlled and controllable amount of properly sized and screened proppant and fluid to a frac fluid blending system.

Aggregate washing systems are described including mechanisms for slurrying, washing and/or dewatering aggregate material.

Aggregate washing systems are described including mechanisms for slurrying, washing and/or dewatering aggregate material.

Aggregate processing systems, methods, and apparatus are described. In some embodiments, a plant is configurable in one of a plurality of configurations.

Aggregate processing systems, methods, and apparatus are described. In some embodiments, a plant is configurable in one of a plurality of configurations.

A sorting station is provided with a deck screener including at least one filter and a fluid source configured to supply a fluid; a chute in fluid communication with the deck screener; a drying station in fluid communication with the chute; a settler in fluid communication with the drying station and the chute; and wherein the fluid is configured to wash matter disposed onto the deck screener. Methods of sorting a particular matter from a mixture of matters, and processes of filtering soil are also provided.

A sorting station is provided with a deck screener including at least one filter and a fluid source configured to supply a fluid; a chute in fluid communication with the deck screener; a drying station in fluid communication with the chute; a settler in fluid communication with the drying station and the chute; and wherein the fluid is configured to wash matter disposed onto the deck screener. Methods of sorting a particular matter from a mixture of matters, and processes of filtering soil are also provided.

An apparatus for washing and grading sand and aggregate includes an aggregate grading and washing screen with a plurality of vertically stacked decks for producing a plurality of aggregate products therefrom, and at least one sump for collecting undersize material comprising sand and water from the plurality of decks. A plurality of sand washing and grading units each include a first hydrocyclone, a vibratory screen having a deck, and a sump beneath the deck for receiving undersize material and water passing through the deck. The deck of the vibratory screen receives an underflow from the first hydrocyclone. A further hydrocyclone receives undersize material and water from the vibratory screen's sump. Underflow from the further hydrocyclone is delivered onto the deck of the vibratory screen. The first hydrocyclone of each sand washing and grading unit receives undersize material and water from the sump of the aggregate washing and grading screen.

An apparatus for washing and grading sand and aggregate includes an aggregate grading and washing screen with a plurality of vertically stacked decks for producing a plurality of aggregate products therefrom, and at least one sump for collecting undersize material comprising sand and water from the plurality of decks. A plurality of sand washing and grading units each include a first hydrocyclone, a vibratory screen having a deck, and a sump beneath the deck for receiving undersize material and water passing through the deck. The deck of the vibratory screen receives an underflow from the first hydrocyclone. A further hydrocyclone receives undersize material and water from the vibratory screen's sump. Underflow from the further hydrocyclone is delivered onto the deck of the vibratory screen. The first hydrocyclone of each sand washing and grading unit receives undersize material and water from the sump of the aggregate washing and grading screen.