Crystallization Mvr Evaporator For Potassium Bicarbonate Khco3 Evaporation

MVR Evaporative Crystallization for Potassium Bicarbonate Evaporation

Potassium bicarbonate is an inorganic substance with the chemical formula of KHCO3, which has a colorless transparent monoclinic structure, the relative density is 2.17g/cm3, which is a stable substance in air. It is the material for producing potassium carbonate, potassium acetate and potassium arsenite.

Process

Mixed potassium bicarbonate ion exchange solution containing ammonium bicarbonate and potassium bicarbonate mother solution containing potassium carbonate to obtain mixed material solution; The preheat feed liquid is sent to a desorption self-carbonization tow for low-temperature desorption self-carbonization; The material liquid desorbed from the carbonization tower enters multi- effect evaporator in turn for treament. Separating the obtained solid-liquid mixture by a centrifuge to obtain potassium bicarbonate crystals and potassium bicarbonate mother liquor containing potassium carbonate. The potassium bicarbonate crystal is dried and screened by a dryer, and then packaged and put into storage; The potassium bicarbonate mother liquor containing potassium carbonate is sent to effect evaporator and the liquid storage tank espectively. This method can significantly reduce the energy consumption in the evaporation process of potassium bicarbonate, and improve or control the crystal size and product quality of potassium bicarbonate.

MVR evaporator components:

Evaporator:

The liquid material inside the evaporator heated by steam for evaporation. Choose different type evaporator according to different liquid material features.

Separator(crystallizer):

use to separate vapor and liquid, according to different liquid features choose different type separator(crystallizer), such as normal separator, gravity separator, special design separator (crystallizer ).

Vacuum system:

Use to keep the whole system vacuum degree, pump some air, fixed gas, liquid entrainment of gas from the evaporator, so as to obtain the whole system stable evaporation process.

Pump:

Use to transfer liquid and concentrated liquid. According to different liquid features choose different pumps, such as centrifugal pump, displacement pump,screw pump.

Compressor:

Use to compress secondary vapor to supply heating source, improve secondary vapor enthalpy. According to different flow and compression ratio choose different compressor, in the case of pressure rise increase, multistage compressor can be used in series.

Control system:

MVR Evaporation system control center, by regular motor speed, control valve,flow meter, temperature and pressure, to realize automatic evaporation, cleaning, stop operations and so on. Automatic alarm, automatic protection system is not damaged, keep dynamic balance.

Cleaning system:

Different liquid after period of evaporator, there maybe scaling phenomenon, general speaking, 99% of the scale can be removed by adding chemical solvent, and can use CIP clean in situ or disassemble to clean.

Performance Comparison for Different Evaporator

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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.

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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.