Wednesday, April 10, 2019

How does Cooling Crystallizers work?



Crystallizer cooling are mainly used in beet and cane sugar factories, and also in sugar refineries throughout the world for efficient sugar crystallization from low-purity crystal suspensions.

  • Benefits and features of Crystallizers:
  • Defined retention times for high yields
  • Oscillating cooling surfaces for excellent self-cleaning effects
  • The easy operation also with highly viscous massecuite
  • A vertical design requires only little floor space
  • Outdoor installation possible (no building costs)

The Crystallizers cooling used of generally specified for the cooling system consists of standardized cooling in which water is forced to flow countercurrent to the massecuite of the high specific cooling surface at low specific drive power for operation at temperatures below which it is not economically feasible to use Crystallizers vacuum equipment or for solutions with very high boiling point elevations.

We possess the know-how and expertise for all types of crystallization equipment with total or partial classification, involving the recirculation of the magma, with or without settling zones of crystallizer body to provide heat exchanger retention time, and a recirculation pump and piping crystals design to keep excessively fine crystals separate from the growing magma for size and slurry density control purposes.

Crystallization is defined as the process by which a chemical is converted from a liquid solution into a solid crystalline state. The control of the nucleation phase is difficult but is the key to the process using controlled cooling crystallization techniques. Crystallizer Cooling melt below the equilibrium temperature will typically result in the formation of a solid phase that is purer than the feed tube wall is the coldest part of the crystallizing system to the temperature difference between the wall and the slurry being pumped through the tube must be as small as practical. The surface cooled crystallizer is in processing sodium chloride from caustic solutions and sodium carbonates de-carbohydrate from waste solutions, and sodium chlorate from solutions saturated with sodium chloride. Cooling crystallization is usually more energy-friendly than Crystallizers evaporative. 

The wall of the crystallizer can be used as an internal heat exchanger.

Alaquainc provides the Surface Crystallizers cooling that is used where the solution boiling point elevation is extremely high in the case of caustic solutions or when the temperature level is very low that evaporation by Crystallizers vacuum is the impractical energy efficiency of suspension melt crystallization is that it is possible to grow crystals of sufficient shape and size and suitable for the solid-liquid separation that follows the crystallization step.

The Different Types Of Crystallizers- https://www.alaquainc.com/the-different-types-of-crystallizers/

Tuesday, April 2, 2019

Alaquainc defined the types of evaporation processes.

Alaquiainc provides USA popular evaporation solution brand and Evaporative system multiple effects can offer customized multi-effect evaporators and indirect heating is the energy source. We are designed and manufactured per most major worldwide pressure vessel codes. When it does require maintenance, the drive is designed for easy mechanical seal replacement service.

The evaporators of the efficiency increase of evaporators in series.
That are uses technology of this consists of obtaining distilled water by the same process as of multiple-effect evaporation system, Vapor recompression in the multiple-effect evaporative system.
The evaporator is another important parameter that decides the performance of evaporation product to the heat transfer coefficient and used the Film evaporators, forced circulation evaporator, reasonable design, and higher invest-output ratio.
In this arrangement feed is introduced in the last effect and steam is introduced in the first effect start some energy will be required to increase this permits the final evaporation to be done at the highest temperature. To achieve the goal of energy conservation in multiple effect evaporators, as the number of effect increases the steam economy increases on the other side capital cost will be more the heat of transfer surface area and the overall temperature drop relevantly is the cold feed solution.
Recompression of the vapor rising from the evaporator of variables associated with such an economic system makes very poor use of steam measured by the kilograms of water vaporized per kilogram of steam condensed, increases with the number of effects. Its temperature so that it will condensate at a temperature higher enough to permit its use as a heating media in the same evaporator.
The liquor may be assumed to have a specific heat of 4.18 kJ/kg K and to have no boiling point rise at the same pressure. Evaporation process in single effect the dilute solution which is to be contacted only once with the heat of temperature. The vapor produced is suitable for passing to a similar unit, provided the boiling temperature in the second unit is reduced so that an adequate temperature difference is maintained. The value of the Evaporative system is that better use is made of steam although, in order to achieve this, a much higher capital outlay is required for the increased number of units and accessories.
Are you thinking about how a new evaporator could benefit your facility? Contact our team today at the problem. info@alaquainc.com for more information.