Triple-effect evaporator

Product Overview

The triple-effect evaporator utilizes simultaneous triple-effect evaporation, with the secondary steam subjected to repeated action, thereby saving on boiler investment and reducing energy consumption. Energy consumption is reduced by 70% compared to single-effect concentrators, allowing users to recoup the full investment in the concentrator within less than a year. The triple-effect evaporator employs external heating with natural circulation and vacuum evaporation methods, featuring fast evaporation rates, high concentration ratios up to 1.2-1.3. It is suitable for concentrating solutions in traditional Chinese medicine, Western medicine, starch, monosodium glutamate, dairy products, chemicals, and more, particularly for low-temperature vacuum concentration of heat-sensitive materials. Users can select the appropriate series of concentrators based on their specific technical requirements.

Product Features

This equipment operates on a tube bundle-type circulation external heating principle, resulting in short material heating time, rapid evaporation, high concentration ratio, and effective preservation of the material's original efficacy.

High energy-saving effect, saving about 70% of evaporation compared to single-effect evaporators. Material is evaporated and concentrated in a closed system, ensuring a clean and comfortable environment; the unique defoaming device of this system prevents material leakage.

All contact parts are made of imported stainless steel and are polished for excellent corrosion resistance, easy cleaning, and compliance with food hygiene regulations. Optional with a microcomputer control system for simple operation and stable performance.

Application Scope

Wastewaters that are not suitable for treatment by biological, chemical, or membrane processes, such as high-salt wastewater, electroplating wastewater, dyeing wastewater, etc.; as well as the evaporation and crystallization of substances like sodium chloride, potassium chloride, sodium sulfate, sodium sulfite, copper sulfate, magnesium chloride, ferric chloride, ammonium chloride, barium chloride, copper chloride, calcium chloride, nickel sulfate, sodium hydroxide, potassium salicylate, sodium carbonate, zinc sulfate, potassium fluor铝酸, fumaric acid, manganese sulfate, and ammonium fluoride.

High-value-added manufacturing wastewater contains recoverable resources, such as those in the electronics industry, printed circuit boards, precious metal recycling, and film duplicating.

Liquid concentration during the production process, such as electroplating solution concentration, process concentration, high concentration liquid incineration pretreatment concentration, and chemical process concentration, etc.

Machining industry cutting oil.

Operating Principle

The three-effect evaporator crystallizer is conical in shape under the action of the conduit tube, with the cross-sectional area gradually increasing from bottom to top. Therefore, as the fluid flows through the crystallizer, the velocity decreases. According to the sedimentation principle, crystals, being heavier, settle faster. The bottom of the evaporation chamber is also conical to facilitate material sedimentation and discharge. Additionally, a conduit tube is located in the middle of the evaporation chamber to aid in solid-liquid separation. Crystals settle to the bottom of the conduit tube and then into the bottom of the dewatering leg. The clear mother liquor from the evaporation chamber is connected to the circulating pipeline and pump. The circulating pump sends the material to the heater, where it is heated and then reintroduced into the evaporation separation chamber tangentially, continuously circulating. The crystallized material is then transferred to the slurry pump for discharge.

Maintenance Instructions

1) Replace the lubricating oil twice within the first month of use, then replace it once every 3-4 months thereafter.

2) After opening the low head, loosen the bolts at the bottom of the impeller U-shaped groove, and check and replace the scraper every four months.

3) Every two months, open the bottom bearing, inspect for wear, and replace if necessary.

4) Regularly soak and clean the inner cylinder with warm water or solvent based on the material properties.

5) Add sealing fluid to the mechanical seal cavity once a month, using 20# mechanical oil.

Technical Specifications