High heat transfer coefficient Mvr Tubular Forced Circulation Evaporator Equipment during crystallization process

Working principle and characteristics:

Working principle and characteristics:

MVR forced circulation evaporation system consists of evaporator, separator, forced circulation pump and steam compressor. The heat transfer between the material in the evaporator tube and the steam outside the tube causes the temperature to rise; After the temperature rises, the solution is divided into two phases: steam and solution. The steam rises to the separator, and the droplets in the steam are separated by the demister. After purification, the droplets are transported to the compressor. The compressor compresses the steam and sends it to the shell side of the evaporator for heating steam, so as to realize the secondary steam recycling and continuous evaporation. The secondary steam generated by evaporation overflows from the material, the material is concentrated into supersaturated material, crystallizes, and the crystal slurry is output from the circulation pipeline by the discharge pump; The mother liquor enters the forced circulating pump, and then enters the evaporator for re evaporation under the action of the circulating pump.
In this way, the circulation continuously evaporates, concentrates and crystallizes.
It has the following advantages:
It is suitable for materials with high viscosity;
It contains particles;
High concentration ratio;
The pipe has high velocity and is not easy to dry wall or scale.

Crystallization
During the crystallization process, substances are separated from one another by using different solution equilibria. Applications include salt extraction and fertilizer production.

The Tubular Forced Circulation Evaporator FCE is the right solution to concentrate streams containing a big amount of suspended solids, medium-highly viscous fluids and products with high tendency to fouling. This kind of evaporator is also widely used as crystallizer, where special separator designs are used to separate crystals from the recirculated crystal slurry.

It is particularly suited as high concentration step in multiple-effect (ME) evaporation, thermal vapor recompression (TVR) or mechanical vapor recompression (MVR) arrangement because the forced circulation evaporator can handle more concentration values and/or higher solid content than a falling film evaporators.

In a multi-stage system, Forced Circulation Evaporators can be used in combination with Thin Film Evaporators/Dryers or with Falling Film Evaporators

FEATURES
Medium to high heat transfer coefficient, especially for low viscous product under turbulent conditions
High circulation flow-rate inside the heat exchanger
Evaporation does not take place on the heating surface, but in the flash separator
Long residence time due the high recirculation, therefore also high liquid hold-up
Vacuum operation or at atmospheric condition
Not suitable for sensitive product, due the long residence time

Our production Capability

Jiangsu Hanpu Mechanical Technology Co., Ltd. is a project engineering company jointly established by Jiangsu Zhongyi Environmental Technology Co., Ltd., FERREO A/S in Denmark, Shanghai Jiaotong University and Nanjing Kingreat Machinery Co., Ltd. The company's production base is located in the Huangqiao Industrial Zone of Taixing, covering an area of 300 acres. The companies involved are in the industry of new material, new energy, medicine, chemical, environmental protection, food, and beverage, etc.

The company has a national functional office and facilities as a scientific research bureau. The research center now has 5 doctor tutors, 8 professional engineers, 11 senior engineers, 42 engineers and 68 assistant engineers making it a leading specialized research bureau.

The company has various kinds of general (special) machinery devices including 480 sets and are the most developed working devices in the world such as: Toshiba CNC boring and milling machine imported from Japan, German Schiess CNC turning processing center, CNC fine plasma cutting machine imported from Germany, Laser cutting machine, CNC folding machine, CNC wire cutting and CNC shearing machine, etc.

The company's main projects include but are not limited to: MVR evaporation system, powder washing salt and vacuum salt production project, oil tank sludge cleaning project, landfill leachate treatment project, plant/animal oil processing production line, urban wastewater treatment project, various wastewater treatment projects, and CBD oil extraction production line. Technical support and transfer of API product technology package. The main products are centrifuge series, multi-effect and MVR evaporation and crystallization equipment, laser welding heat transfer board, lithium battery material mixing equipment, pressure vessel and titanium, zirconium, nickel, and other non-standard special equipment.

The company's sales network throughout the whole world, with a domestic sales market share of 50%, and exported to the United States, Canada, Germany, Spain, France, Switzerland, Sweden, Denmark, Australia, Brazil, Argentina, Chile, Colombia, Russia, Ukraine, Poland, Uzbekistan, Indonesia, Vietnam, Singapore, Malaysia, India, Japan, South Korea, Iran, South Africa, Nigeria, and Rwanda.

The company is an internationally competitive engineering company that integrates technical consulting, design, procurement, construction, installation and driving into one, providing engineering EPC general contract, project management, engineering supervision and other comprehensive, full-process services. The company is Committed to be the first and world-renowned technology and technology engineering company in Asia, providing cutting-edge technology and one-stop solutions for the world's industries.