Evaporator

Evaporator

MULTI EFFECT EVAPORATOR:

Falling Film Evaporators are used for processing liquors, which are sensitive, have a high rate of specific heat transfer, particularly for non-crystalline solutions. The liquid to be evaporated is evenly distributed on the inner surface of a tube. The liquid will flow downwards forming a thin film, from which the boiling/evaporation will take place because of the heating media such as steam, thermic oil, hot water etc.,

Advantages

  • Easy to manage reject management
  • Used to treat High TDS water.
  • Condensed water from evaporator is reused to boiler, so heating element consumption is reduced
  • Minimum 50°C temperature is maintained in condensate water.
  • Easy Maintenance
  • Cost Effective
  • High quality and Optimal performance.

APPLICATIONS

  • Chemical Industries,
  • Drug Industries,
  • Pharma Industries,
  • Refineries,
  • Leachates,
  • Textile Industries,
  • Tanneries,
  • Rubber Industries,
  • Automobile Industries,
  • Food & Beverages
  • Caustic Recovery Plant
  • PVA Recovery Plant
  • Milk Concentration
  • Sugar Concentration
  • Product Concentration

Falling Film Evaporators are available for capacities ranging from 100kg/hr to 30,000kg/hr.

Forced Circulation Evaporator is used if boiling of the product on the heating surfaces is to be avoided due to the fouling characteristics of the product, or to avoid crystallization. The flow velocity in tubes must be high, and high capacity pumps are required. In Forced Circulation Evaporator plant, the solution to be evaporated is circulated by circulation pump through the heat exchanger tubes with high velocity from bottom to the top. The vaporization takes place in the vapour head, where the vapour and liquor are separated by gravity and / or by centrifugal force.

Advantages

  • Easy to manage reject management
  • Used to treat High TDS water.
  • Condensed water from evaporator is reused to boiler, so heating element consumption is reduced
  • Minimum 50°C temperature is maintained in condensate water.
  • Easy Maintenance
  • Cost Effective
  • High quality and Optimal performance

APPLICATIONS

  • Chemical Industries,
  • Drug Industries,
  • Pharma Industries,
  • Refineries,
  • Leachates,
  • Textile Industries,
  • Tanneries,
  • Rubber Industries,
  • Automobile Industries
  • Food & Beverages
  • Mixed Salt Recovery
  • Pharmaceuticals & Bulk Drugs
  • Fish Mill
  • Sugar Mills
  • Electroplating Industries

Forced Circulation Evaporators are available for capacities ranging from 100kg/hr to 15,000kg/hr.

Crystallizer System:

AQUA TECHNOLOGIES offers dryers and crystallization which is a key component of ZLD solutions. Crystallizers are thermal evaporators that can be driven by either steam or mechanical vapour compression.

Forced Circulation Crystallizers

Last effect of multi-effect evaporator acts as a crystallizer, in which effluent is concentrated above the solubility of salt (super saturation) and then supersaturated salt solution is fed to the thickener or settling tank. Low rpm agitator is provided to ensure suspension of salt in the tank.

This mother liquor and crystals are fed to continuous type pusher centrifuge, after pusher centrifuge dry salts are collected and mother liquor is recycled back to multi-effect evaporation system for further concentration. Distillate recovered from the process is suitable for reuse depending on the feed properties.

Chilling Crystallizers

This is a selective type of crystallizer in which liquid effluent is concentrated up to certain required concentration and then fed to thickener. This thickener is equipped with jacketed chilling system, as solubility of salt decreases with decrease in temperature. As temperature decreases, salt crystallizes.

Advantages

  • Continuous operation
  • Best suitable for mixture of crystalline salts
  • lower operating cost

Application

  • Purification of seawater
  • Separation of alum crystals from impure samples
  • Pharmaceutical industry,

MVR Evaporation System:

AQUA TECHNOLOGIES MVR evaporators referred to as a Vapour Compression Evaporator removes water from industrial effluent with minimum energy consumption and maximum condensate water output to plant of high quality.

The evaporators have lamella heating surfaces.  Inherently non-foaming, these evaporators are ideally suited for the low dry solids applications of MVR evaporation with capacities from 10 to 200 t/h in a single unit.

MVR evaporators operate on a “heat pump” principle. The evaporated water vapour is re-compressed with a simple, low-speed centrifugal fan or compressor, which increases the saturation temperature of the vapour. After the fan, vapour can be used as heating steam in the same unit. The recompressed vapour condenses and releases its latent heat through the heat transfer surface for further evaporation of the effluent or Liquor.

Advantage

  • Low energy consumption
  • Very Less steam consumption
  • No cooling water required
  • Excellent condensate Quality.
  • Easy and Smooth Operation
  • Very less operation cost of evaporation.
  • Low TDS Water Recovery can use in process.
  • Zero Liquid Discharge(ZLD) Achievable

 Application

  • Textile Industries
  • Dairy Industries,
  • Sugar Industries,
  • Food & Beverage,
  • Starch Industries,
  • Chemicals Industries,
  • Pharmaceuticals,
  • Distillery,
  • Pulp and Paper Industries
  • Any Effluent to Achieve ZLD (Zero Liquid Discharge