Quartz pickling process line

Process Description

• 01

  Material Preparation and Feeding

  The raw ore is temporarily stored in a silo and then continuously fed into a dedicated pickling reactor via a conveyor belt.

• 02

  Pickling Reaction

  Inside the reactor, the material reacts fully with an environmentally friendly formulated acid solution (hydrofluoric acid, oxalic acid, etc., can be selected according to customer requirements) at a set temperature. During the reaction, the acid solution circulates, and optimal reaction conditions are maintained through a heating and temperature control system, thereby removing impurities such as yellow scale, oxide scale, and black scale from the quartz surface. The reactor uses environmentally friendly insulation materials with excellent corrosion resistance.

• 03

  Deacidification and Washing

  The pickled quartz sand sequentially enters a deacidification hopper, deacidification machine, and dewatering screen for deacidification, washing, and dewatering treatment, yielding clean, high-quality sand, which is then transported to the finished product warehouse for storage.

• 04

  Wastewater Treatment and Recycling

  The separated residual acid solution is transported to a neutralization mixing tank and neutralized by adding industrial alkali. After neutralization and sedimentation, the supernatant overflows into the clear water tank and is reused as circulating water in production, achieving zero wastewater discharge and resource recycling.

SUCCESSFUL CASE