30TPH Frac Sand Production: From Raw Sand to Qualified Proppant

Overview: Frac Sand Production Line

Frac sand (also called proppant) is a high-purity granular material engineered for hydraulic fracturing in oil and gas wells. Natural quartz sand accounts for about 80% of the proppant market worldwide, and roughly 96% in North America (fracturing silica sand).

During stimulation, frac sand is pumped into the fracture with the fracturing fluid. When pumping stops and pressure is released, the sand grains act as tiny props that hold the fractures open. This keeps oil and gas flowing toward the wellbore, boosts reservoir permeability, and lifts well production.

A complete frac sand production line must solve every key challenge — screening, impurity removal, washing, dewatering, drying, tail-water purification, and solid waste disposal.

LZZG supplies full-set equipment for every stage above, alongside customized frac sand production process design and equipment selection services.

Complete Equipment for 30 T/H Frac Sand Production Line

Raw Material Feeding

Vibrating feeder, belt conveyor

Washing, Scrubbing & Classification

Attrition scrubber, sand washing machine, hydrocyclone, linear vibrating screen, magnetic separator

Finished Sand Drying & Screening

Dryer, Swing screen

Tailwater & Solid Waste Treatment

High-efficiency deep cone thickener, high-rate thickener, sludge filter press

 Frac Sand Production Line Working Process

1. Raw Sand Storage & Pre-screening

The raw sand of fracturing sand enters the silo for storage, and is transmitted to the vibrating screen or probability screen for a preliminary screening through the belt conveyor.

2. Scrubbing & Magnetic Separation

Particles <20 meshes enter the scrubbing machine after being magnetically separated by the magnetic separator, and are thoroughly stirred and rinsed to scrub off the mud on the surface of the material.

3. Sand Washing, Dewatering & Fine Sand Recovery

The material from the scrubber enters the sand washer. The sand washing bucket rotates and the material in the cleaning box is stirred for cleaning, which can remove the impurities covering the surface of the material. After cleaning, the coarse particles are sent to the dewatering screen for dehydration.

The tailwater is pumped into the separator by the slurry pump, and the sediment is separated by the separator. After recovery, the fine material is discharged to the screen surface of the dewatering screen and the coarse material is evenly mixed and dehydrated before discharging.

4. Tailwater Treatment & Water Recycling

At the same time, the sludge-water suspended matter treated by the separator is discharged into the sewage tank, and then the tailwater is pumped from the sewage tank into the concentration tank by the pump for the mud-water separation operation.

The concentrated mud is pumped into the plate and frame filter presses through the bottom of the filter tank to achieve dry stacking. After pressure filtration, the clean water enters the clean water tank to realize the recycling of clean water.

5. Frac Sand Drying

Drying. The dehydrated material from the dewatering screen enters the dryer for drying.

6. Finished Sand Classification

After drying, the particles enter the swing screen to screen out several finished materials.