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Forced Circulation Evaporator

  • Forced Circulation Evaporator for Crystallization

Forced Circulation Evaporator for Crystallization

  • Industrial forced circulation evaporator for crystallization, 
  • designed to handle scaling prone, saturated, and crystal containing slurries. 
  • Features anti scaling, stable crystal growth, and efficient solid liquid separation, 
  • ideal for industrial crystallization, salt recovery, and high concentration material
  • crystallization projects.
  • INQUIRY

Yiwu Weihao Machinery Equipment Company professional evaporator manufacturer specializing in industrial crystallization equipment, we design and produce high-performance forced circulation evaporators dedicated to crystallization processes. This equipment is engineered to solve the pain points of industrial crystallization—such as crystal deposition, scaling, uneven crystal size, and equipment clogging—providing a stable, efficient, and reliable solution for crystallization, salt recovery, and high-concentration material purification projects.                                   


Product Details

Our forced circulation evaporator for crystallization is a specialized equipment tailored for industrial crystallization processes, widely used in chemical, environmental protection, food, and pharmaceutical industries. Unlike conventional evaporators, it adopts a high-power forced circulation design combined with optimized crystallization control, effectively handling saturated slurries, crystal-containing materials, and scaling-prone liquids. The equipment realizes synchronous evaporation and crystallization, controls crystal particle size uniformly, ensures stable operation without clogging, and helps enterprises achieve efficient product crystallization, salt recovery, and resource reuse, meeting industrial production and environmental standards.

Our forced circulation evaporator for crystallization is a specialized equipment tailored for industrial crystallization processes, widely used in chemical, environmental protection, food, and pharmaceutical industries. Unlike conventional evaporators, it adopts a high-power forced circulation design combined with optimized crystallization control, effectively handling saturated slurries, crystal-containing materials, and scaling-prone liquids. The equipment realizes synchronous evaporation and crystallization, controls crystal particle size uniformly, ensures stable operation without clogging, and helps enterprises achieve efficient product crystallization, salt recovery, and resource reuse, meeting industrial production and environmental standards.

Working Principle 

  1. Feed Preparation: Saturated solution or high-concentration liquid is pre-filtered to remove impurities, adjusted to appropriate temperature and concentration, creating favorable conditions for crystal nucleation and growth.

  2. Feed Preparation: Saturated solution or high-concentration liquid is pre-filtered to remove impurities, adjusted to appropriate temperature and concentration, creating favorable conditions for crystal nucleation and growth.

  3. Forced Circulation: The pre-treated liquid is pumped into the heating chamber by a high-pressure, anti-clogging circulation pump, forming a high-speed turbulent flow in the heating tubes—preventing crystal deposition, scaling, and blockage on the tube walls.

  4. Forced Circulation: The pre-treated liquid is pumped into the heating chamber by a high-pressure, anti-clogging circulation pump, forming a high-speed turbulent flow in the heating tubes—preventing crystal deposition, scaling, and blockage on the tube walls.

  5. Heating & Evaporation: The liquid is heated by steam (or hot oil) in the heating tubes, and under vacuum conditions (-0.06 to -0.095 MPa), the solvent boils and evaporates at a low temperature (55–85°C), increasing the liquid concentration to supersaturation.

  6. Heating & Evaporation: The liquid is heated by steam (or hot oil) in the heating tubes, and under vacuum conditions (-0.06 to -0.095 MPa), the solvent boils and evaporates at a low temperature (55–85°C), increasing the liquid concentration to supersaturation.

  7. Crystallization & Growth: The supersaturated liquid enters the crystallization chamber, where crystals nucleate and grow under controlled conditions; the forced circulation ensures uniform crystal size and avoids agglomeration.

  8. Crystallization & Growth: The supersaturated liquid enters the crystallization chamber, where crystals nucleate and grow under controlled conditions; the forced circulation ensures uniform crystal size and avoids agglomeration.

  9. Solid-Liquid Separation: The crystal-slurry mixture is continuously discharged from the crystallization chamber, entering a separator for solid-liquid separation—crystals are collected as products, and the mother liquor is recycled back to the evaporator for re-concentration and crystallization.

  10. Solid-Liquid Separation: The crystal-slurry mixture is continuously discharged from the crystallization chamber, entering a separator for solid-liquid separation—crystals are collected as products, and the mother liquor is recycled back to the evaporator for re-concentration and crystallization.

Core Advantages (Crystallization Specialized)

  • Anti-Clogging & Anti-Scaling: High-speed forced circulation creates strong turbulent flow, preventing crystal deposition and scaling on heating tube walls; optimized tube structure and anti-clogging pumps avoid equipment downtime, ensuring long-term stable operation.

  • Anti-Clogging & Anti-Scaling: High-speed forced circulation creates strong turbulent flow, preventing crystal deposition and scaling on heating tube walls; optimized tube structure and anti-clogging pumps avoid equipment downtime, ensuring long-term stable operation.

  • Controlled Crystal Quality: Equipped with crystal size control system, ensuring uniform crystal particle size (adjustable as needed), good crystal morphology, and high product purity—suitable for high-standard crystallization requirements.

  • Controlled Crystal Quality: Equipped with crystal size control system, ensuring uniform crystal particle size (adjustable as needed), good crystal morphology, and high product purity—suitable for high-standard crystallization requirements.

  • Strong Adaptability: Capable of handling saturated solutions, crystal-containing slurries, and scaling-prone liquids, suitable for various crystallization scenarios (such as salt recovery, chemical product crystallization, and pharmaceutical crystal purification).

  • Strong Adaptability: Capable of handling saturated solutions, crystal-containing slurries, and scaling-prone liquids, suitable for various crystallization scenarios (such as salt recovery, chemical product crystallization, and pharmaceutical crystal purification).

  • Corrosion & Wear Resistance: Contact parts are made of high-grade corrosion-resistant and wear-resistant materials (316L stainless steel, Hastelloy optional), resisting corrosion from acidic, alkaline, and high-salt solutions, and wear from crystal particles.

  • Corrosion & Wear Resistance: Contact parts are made of high-grade corrosion-resistant and wear-resistant materials (316L stainless steel, Hastelloy optional), resisting corrosion from acidic, alkaline, and high-salt solutions, and wear from crystal particles.

  • Efficient & Energy-Saving: Forced circulation design ensures high heat transfer efficiency and continuous stable operation; optional multi-effect or TVR energy-saving configuration, reducing steam consumption by 30–70%, lowering production costs.

  • Efficient & Energy-Saving: Forced circulation design ensures high heat transfer efficiency and continuous stable operation; optional multi-effect or TVR energy-saving configuration, reducing steam consumption by 30–70%, lowering production costs.

  • Easy Operation & Maintenance: PLC + HMI automatic control system, real-time monitoring of temperature, pressure, concentration, and crystal size; detachable crystallization chamber and heating tubes, easy to clean, disassemble, and maintain.

  • Easy Operation & Maintenance: PLC + HMI automatic control system, real-time monitoring of temperature, pressure, concentration, and crystal size; detachable crystallization chamber and heating tubes, easy to clean, disassemble, and maintain.

Technical Specifications

Material

316L/2205/Ti

Crystallization Adaptability

Saturated Solutions, Crystal-Containing Slurries

Evaporation Capacity

100–50000 L/h (Customizable)

Operating Conditions

–0.06~–0.095 MPa, 55–85°C

Energy Saving Option

Multi-effect / TVR /MVR

Applications

Widely used in industrial crystallization and resource recovery, including: Chemical Industry (inorganic salt crystallization, chemical product crystal purification, catalyst crystallization); Environmental Protection (

Our Service

We provide one-stop solutions for your chemical slurry processing needs: custom design based on your slurry viscosity, solid content, chemical properties, and production capacity; professional manufacturing with strict corrosion-resistant, anti-clogging quality control; on-site installation, commissioning, and operator training; lifelong after-sales maintenance, spare parts supply, and technical support. Free technical consultation, slurry sample test, and customized quotation are available—contact us to get your tailored solution.