The soda ash manufacturing process

Amonia process : Synthetic Soda Ash

Tronia Refining : Natural Soda Ash

HASLER Group in the soda ash industry

HASLER Group in the soda ash washing & dewatering process

	Objectives Cake Moisture content (typical values between 15 – 16%) Chlorides removal (typical values lower <0,15% in soda ash)
Challenges/ Solutions Corrosion (Large choice of resistant materials : FRP; 316L; 904L; U45N; …) High Tonnages (belt, pipes designed for high drainage capacity) Dryer energy consumption : cake moisture reduction ( to 12% using cake pressure rollers, surfactant, …)

HASLER Group in the Na2CO3 recovery process

	Objectives Cake Moisture content (typical values between 15 – 16%) Chlorides removal (typical values lower <0,15% in soda ash)
Challenges/ Solutions Corrosion (Large choice of resistant materials : FRP; 316L; 904L; U45N; …) High Tonnages (belt, pipes designed for high drainage capacity) Dryer energy consumption : cake moisture reduction ( to 12% using cake pressure rollers, surfactant, …)

HASLER Group in :

CaCo3 Dosing

	Objectives Injection of powdery product at high flowrate Accurate dosed injection for maximizing Soda ash yield Avoiding dust emission
Challenges/ Solutions Resting chamber filled & maintained at a steady level by double regulation loop with vertical shaft rotor for perfect flow managment of the product from storage to reactor Weigh regulated feeder reaching high accuracy of +/- 0.5% of set point flowrate Multiple dedusting outlets along resting chamber Special dustproof sealing

CaCo3 Rock Dosing

	Objectives Injection of granular product at various flowrate (medium to high) with a large range of grain size and humidity Accurate feed injection for maximizing Soda ash yield Avoiding dust emission
Challenges/ Solutions Modular design in length and in width for adaptation in workshops and achievement of process performance Weigh regulated feeder reaching high accuracy of +/- 0.5% of set point flowrate Various option available against analysis of the product characteristics

CaCo3 Flowmeter

	Objectives Recording production rate (instant measure of flowrate) Accurate and heavy duty flowmeter solution
Challenges/ Solutions Paralelogram mounting of loadcells High resolution digital loadcell (1M pts) if very high accuracy is needed DUAL & TWIN version of the let scale for operating under large and / or fast conveyors TWIN: 2 loadcells in parallel across the belt (for large conveyors) DUAL: 2 stations weighted in serie (for fast conveyor)

HASLER Group in the mill management

	Objectives Reduce mill’s power consumption Preserve grinding media from wear Measure rejected product rate on recycle loop of the mill
Challenges/ Solutions Automatic calibration and adaptation to the quality of material to be crushed Remote control Cross talk compensation if multiple mills equipped in parallel Real time adaptation of flowrate of the fresh Phosphate injection to the mill

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