Industry perspectives
Processing

Soda Ash market field

The soda ash manufacturing process

Amonia process : Synthetic Soda Ash

    HOU Process

    HOU Process Soda Ash
    SOLVAY Process

    Solvay process for soda ash

Tronia Refining : Natural Soda Ash

    Monohydrate process

    Monohydrate process for soda ash
    Sesquicarbonate process

    Sesquicarbonate process for soda ash

 

HASLER Group in the soda ash industry

filtration dosing mixing in soda ash market

 

HASLER Group in the soda ash washing & dewatering process



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



NA2CO3 recovery


    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




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





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

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

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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