Centpro Engineering Private Limited

Hadapsar, Pune, Maharashtra

Mercerising process :In textile industry Mercerising is one the major process to improve the quality (tenacity) of fabric The operation is carried out by using Sodium hydroxid which is also known by caustic soda. Cotton Fibre or yarn rinsed with solution of caustic lye which has concentration about 22 – 35 % (For Dry on Wet and Wet on Wet). Both the mature and immature cotton bre will soak the lye. After soaking process, there is drastic change in internal structure of fibre. At the end of mercerising cycle, the fabric treated with water to reduced the excess caustic lye from the surface of fibre. As, because of water wash the concentration of caustic lye goes on decreasing. This solution is termed is weak lye as it has concentration up to 4 -6% and its unusable to use for any process. So, discharge this caustic effuent to ETP for treatment are the single options and same process consume huge amount of acid to make ETP euent neutralized because of alkalinity nature of weak lye. Thus, it implies towards substantial loss of caustic soda.

Caustic Soda Recovery Plant.The caustic recovery operation came into picture which mostly focused on reducing acid consumption and reduce ETP load, by recovering caustic from weak lye solution.Our designed Multiple Effect Evaporation plant will concentrate caustic from 4-6% up to 30-35% which can be reuse into mercerising process.

Features

• Suppressed boiling stops evaporation in tubes
• Reduces Scaling and fouling due to safer side design

We offer a system comprising of Thermovapour re-compressor (TVR), Feed pre-heaters, Condensate flashing to reduce the steam consumption & thus achieving higher steam economy.
Properly selected & designed scheme, adequate heat transfer area at best operating temperatures ensures the plant performance for longer time and reduces CIP frequency & plant stoppages.

Easy & quick CIP facility for the plant, Fully automated and manual operation mode as per requirement, MOC as required. Complete turnkey plant package comprising of,

• Calendrias, Pre-heaters, Vapor-liquid, TVR, separators , Pumps, Hardware, Piping, Vacuum system Cabling , Instrumentation & Control
• Installation, Commissioning and Good after sales services.

                                                               
We offer all sizes and all type of evaporators namely,

• Falling film 
• Forced circulation, Scrapped surface Crystallize
• Evaporator in effective combination with Multiple effect evaporation system. Optimum number of effects in combination with falling film and forced circulation offered by us ensures least operating cost at the balance of capital cost.

Salient feature of the System Offered by “CENTPRO”

• Offers various thermal methods for complete Zero Liquid Discharge Solution
• Selection of correct process scheme based on the type of effluent
• Every ZLD system is a unique designed and custom made to suit the effluent type
• Lower capital and operating costs
• Highly energy efficient
• Useable evaporative condensate generation from effluent
• Effective use of combination of Falling film & Forced circulation in multiple effect evaporator with Thermovapour recompressor (TVR), Feed preheating and Condensate flashing system to achieve highest steam economy.
• Removal of solvents from high COD stream using stripper column
• Dry powder / baggable solids are produced in uniquely designed dryer / ATFD plant
• Proper implementation of ML recycle system + Centrifuge for salt recovery
• Proper designed thus less cleaning frequency & Plant Stoppages
• Easy accessibility and less space requirement
• Minimum manpower required and user friendly plants
• Available in both fully automated and manual operation mode In house state of art manufacturing facility and quality control. All equipments are manufactured as per international codes and quality standards to meet specific needs