> Evoporated Cystallser
- It is a circulating Liquid evaporating with help of steam The consist of a crystallizing chamber containg a back of forming and growing cutystal.
- Criculatng from external heater for heating the solution with the help of condensing heat and the vapour.
- The solution from the curystallising chamber pump by circulating from on the suction side of which the feed solution forming a small part of the total circulating liquid is introduced in to a beater where it is heated by Steam.
- Fed to a vapour had where in some of the solution of vapor resulting in to some degree of the supersatutation .
- Neucleation takes place in the cryatal Phase which is maintain in a fluidised phase.
- The nuclei foumed cirtculated with the other liquid & once they grow sufficien large they will be retained in the fludised bed.
- when the crystals grow to a required Size they will be with drawn as product from the bottom of the cutystallising.
- chambeul, as they will not he maintaine in the fluidised bed by the circulation velocity.
> Draft Tube Crystalliser.
- Dirfat tube crystalliser ane formed - superial contuol over curystal size & charact eulistics .
- The Draft tube battle crystalliser has been toruvent highly effective
- These type of crystalliser is used primany in the production of a variety of size crtstalline material such as ammonium slphate, Potassium chlorade diammonium phosphate foot the fertillizer industries
- Surrunding the suspended magma is annulan setting zone from which steam of mother liquid barring line crystal ca be removed.
- This lines are separated from the growing suspention of crystal by gravitatal setting in annular baffle zone.
- Fines leaving the baffle zone & send to a following stage, settler ot hea exchangeor in the case of eovaporating Draft tube crystalliser.
- The mother liquor is returne the suction of the propaller circulator after the fines have heen destroyed by ng or mixting with dilule with water depends on flowsheet
Advantages Of Draft Tube Crystalliser.
1) Copable of ur ducing large singular crys
2) lower operating post
3) Minimum space requiurement
4) Adaptable most corrosion, resistant of consturuction.
5) Simplicty of opeoration , startup est
> Spray Column
- Spray column is gas-liquid contactor used to achieved the mass and heat transfer between a continuous gas phase and a dispered medium of the liguid phase.
- It is consists of empty cylindrical vessel made of Steel or plastic & nozzels that Spray liquid in to the vessol.
- The iniet gas Stream usualluy enters the bottom of the column and moves upward, while liquid is sprayed downward from one or more levels.
- This flow of inlet gas and liquid in the opposite direction is called counter current flow.
- It is a circulating Liquid evaporating with help of steam The consist of a crystallizing chamber containg a back of forming and growing cutystal.
- Criculatng from external heater for heating the solution with the help of condensing heat and the vapour.
- The solution from the curystallising chamber pump by circulating from on the suction side of which the feed solution forming a small part of the total circulating liquid is introduced in to a beater where it is heated by Steam.
- Fed to a vapour had where in some of the solution of vapor resulting in to some degree of the supersatutation .
- Neucleation takes place in the cryatal Phase which is maintain in a fluidised phase.
- The nuclei foumed cirtculated with the other liquid & once they grow sufficien large they will be retained in the fludised bed.
- when the crystals grow to a required Size they will be with drawn as product from the bottom of the cutystallising.
- chambeul, as they will not he maintaine in the fluidised bed by the circulation velocity.
> Draft Tube Crystalliser.
- Dirfat tube crystalliser ane formed - superial contuol over curystal size & charact eulistics .
- The Draft tube battle crystalliser has been toruvent highly effective
- These type of crystalliser is used primany in the production of a variety of size crtstalline material such as ammonium slphate, Potassium chlorade diammonium phosphate foot the fertillizer industries
- Surrunding the suspended magma is annulan setting zone from which steam of mother liquid barring line crystal ca be removed.
- This lines are separated from the growing suspention of crystal by gravitatal setting in annular baffle zone.
- Fines leaving the baffle zone & send to a following stage, settler ot hea exchangeor in the case of eovaporating Draft tube crystalliser.
- The mother liquor is returne the suction of the propaller circulator after the fines have heen destroyed by ng or mixting with dilule with water depends on flowsheet
Advantages Of Draft Tube Crystalliser.
1) Copable of ur ducing large singular crys
2) lower operating post
3) Minimum space requiurement
4) Adaptable most corrosion, resistant of consturuction.
5) Simplicty of opeoration , startup est
> Spray Column
- Spray column is gas-liquid contactor used to achieved the mass and heat transfer between a continuous gas phase and a dispered medium of the liguid phase.
- It is consists of empty cylindrical vessel made of Steel or plastic & nozzels that Spray liquid in to the vessol.
- The iniet gas Stream usualluy enters the bottom of the column and moves upward, while liquid is sprayed downward from one or more levels.
- This flow of inlet gas and liquid in the opposite direction is called counter current flow.
👌👌👌
ReplyDelete😊😊
ReplyDelete🙏🙏🙏
Delete