Liquid Crystallizer Multi Effect Evaporator Water Recycling System for Wastewater Solutions

• Customization: Available
• After-sales Service: 7*24h
• Warranty: 1year
• Model NO.: KJH-MUL-4317
• Type: Evaporation Crystallization Equipment
• Method: Combined Treatment
• Usage: Industrial
• Material: Titanium/Stainless/Carbon Steel
• Advantages: Stable Performance/Energy-Saving
• Heat Exchanger Type: Plate / Tube Heat Exchanger
• Power: 8600kw/H
• Process Flow Direction: Downstream/ Countercurrent/ Crosscurrent
• Delivery Time: 100day
• Application Industry: Metallurgy/Power Plants/Pharmaceuticals
• Function: Evaporation, Concentration, Crystallization
• Temperature: 10-100℃
• Energy Consumption Per Ton of Water Evap: 25kw-1000kw
• pH: 6-8
• Processing Capacity: ≥0.5t/H
• Name: Multi Effect Evaporator
• Transport Package: Plastic Film and Wooden Boxes
• Specification: ≥6*6*4
• Trademark: conqinphi
• Origin: Qingdao, China
• Production Capacity: 320 Sets/Year
• Package Size: 900.00cm * 800.00cm * 50.00cm
• Package Gross Weight: 27400.000kg

Product Description

Forced circulation evaporator

A forced circulation evaporator is an evaporation device that forces material to circulate at high speed within the heated tube bundle by installing an axial flow pump in the evaporator's circulation lines.

This contrasts sharply with natural circulation evaporators, which rely on the density difference between heated and unheated materials to create natural flow. Forced circulation provides stable, controllable, and efficient flow, making it particularly suitable for processing high-viscosity, fouling-prone, crystallizing, or heat-sensitive materials.

Types of evaporator

Single-effect forced circulation evaporator	Has only one evaporation unit, resulting in higher energy consumption. Suitable for small-scale operations or applications with low steam costs.
Multi-effect forced circulation evaporator	Connects multiple evaporators in series. The secondary steam generated in the previous cycle serves as the heat source for the next cycle, significantly reducing steam consumption. It is the mainstream choice for large-scale industrial plants.
Forced circulation evaporator with heat pump (TVR)	Uses a steam jet pump to compress a portion of the secondary steam and reuse it as a heat source, further improving thermal energy utilization.

Process

Forced Circulation: Driven by an axial flow pump, the material enters the tube side (or shell side, but tube side is more common) of the shell-and-tube heating chamber at a high flow rate (typically 1.5 - 3.5 m/s).

Heating (Non-Boiling): Inside the heating tubes, the material is heated by heating steam (or other heat sources) in the shell side. A key design feature is the control of the system's pressure to ensure that the material is heated within the heating tubes but does notboil. This effectively prevents rapid scaling or crystal formation on the tube walls due to boiling. 

Flash Evaporation: After leaving the heating chamber, the high-temperature material enters the evaporation separation chamber. Because the pressure in the separation chamber is lower than that in the heating chamber, the material instantly boils, resulting in "flash evaporation." A large amount of water is evaporated.
Gas-Liquid Separation: In the separation chamber, the secondary steam generated is separated from the concentrate due to the reduced flow rate and the action of centrifugal force/baffles.
Circulation and Discharge:
The secondary steam is discharged from the top of the separation chamber and condensed in the condenser.
Once a portion of the concentrate reaches the predetermined concentration, it is continuously discharged from the outlet as product (or waste liquid).
The remaining concentrate is mixed with fresh material from the inlet and then pumped back into the heating chamber by an axial flow pump to begin the next cycle.

Application

1.Materials prone to scaling: Such as inorganic salt solutions like sodium chloride, sodium sulfate, and sodium carbonate.

2.Materials prone to crystallization: Solutions that crystallize during evaporation, such as ammonium chloride, ammonium nitrate, and glucose. It is often used in conjunction with an OSLO crystallizer.

3.High-viscosity materials: Such as dyes, adhesives, and polysaccharide solutions.

4.Heat-sensitive materials: Such as certain food juices and pharmaceutical extracts.

5.High-concentration wastewater treatment: Terminal concentration in industrial wastewater "zero discharge" systems, typically with extremely high salt content and prone to crystallization.

Advantages and Disadvantages

Advantages:

Disadvantages:

1.Strong Anti-scaling and Anti-crystallization Capabilities: This is its most prominent advantage. The high-speed liquid flow has a strong scouring effect on the pipe wall, effectively inhibiting the deposition of scale and crystals. Simultaneously, the non-boiling design within the heating tube fundamentally avoids localized excessive concentrations and crystal adhesion caused by the collapse of boiling bubbles.

2.Suitable for High-Viscosity Materials:Powerful pumping capability overcomes the flow resistance caused by high-viscosity materials, ensuring excellent heat transfer.

3.High Heat Transfer Efficiency:High-speed flow disrupts the laminar boundary layer of the pipe wall, enhancing turbulence and thus improving the overall heat transfer coefficient.

4.High Operational Flexibility: By adjusting the pump speed and flow rate, it can adapt to different feed conditions and concentration requirements.

5.Easy to Handle Heat-Sensitive Materials: The short residence time of materials within the heating tube and the ability to control evaporation at lower temperatures reduce the decomposition of heat-sensitive substances.

1.High Energy Consumption:The axial flow pump is the main energy-consuming component; its continuous operation consumes a large amount of electrical energy, resulting in higher operating costs than natural circulation evaporators.

2.High investment costs: The addition of pumps, more robust piping, and control systems results in a significant initial investment.

3.Wear-related wear: High-speed flowing materials, especially those containing solid particles, can cause wear and corrosion to the pump impeller and the inner walls of the heating pipes.

4.Complex maintenance: Axial flow pumps and other moving equipment require regular maintenance, increasing the complexity and cost of maintenance.

Company Profile

Qingdao Conqinphi Environmental Technology Group Co., Ltd. is a system integration manufacturer specializing in the evaporation and concentration of high-salinity wastewater. Conqinphi boasts its own 90,000 square meter processing plant and employs hundreds of people. It is a research and development-focused technology enterprise.

 

Conqinphi's main products include MVR evaporators, multi-effect evaporators (primarily triple-effect evaporators, quadruple-effect evaporators, double quadruple-effect evaporators, and double-effect MVR evaporators), zero-discharge industrial wastewater systems, plate and tubular heat exchangers, crystallizers, mother liquor treatment systems, and other wastewater treatment equipment. With a wide range of products, Conqinphi primarily provides clients with systematic equipment solutions, manufacturing, processing, installing, and commissioning equipment to help them address the evaporation and concentration challenges of high-COD and high-salinity wastewater. Conqinphi's multi-effect evaporators offer low investment, high treatment efficiency, low operating costs, and stable and reliable system operation. They are widely used for evaporation, concentration, and crystallization of high-salinity industrial wastewater in the petrochemical, metallurgical, pharmaceutical, fine chemical, papermaking, printing and dyeing, food processing, jam and juice concentration, seawater desalination, electroplating, rubber additive, epoxy resin, lithium battery, and desulfurization industries.

 

Conqinphi serves thousands of clients, providing them with systematic industrial wastewater solutions and saving them from wastewater treatment challenges.