Sunevap
Sunevap Changzhou manufacturing base
MVR Evaporation Crystallization System

Jiangsu Sunevap Technology Co., Ltd

Founded in 2006, Sunevap focuses on core Mechanical Vapor Recompression (MVR) technology. We deliver energy-efficient, customized integrated evaporation system solutions for new energy, chemical, pharmaceutical, food & fermentation, industrial wastewater treatment, zero liquid discharge (ZLD) and resource recovery industries.

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Founded
2006
Founded
Projects Delivered
1000+
Projects Delivered
Personnel
500+
Personnel
Changzhou Workshop
25,000 m2
Changzhou Workshop
Annual Manufacturing Capacity
6,000-7,000 t
Annual Manufacturing Capacity
Authorized Patents
170
Authorized Patents
  • 31 Invention Patents
  • 27 Software Copyrights
Core Solutions

MVR, drying and resource recovery solutions

Sunevap provides custom-designed evaporators, standardized modular units and full-scope engineering services from design to operational support.

MVR Evaporation & Crystallization

Mechanical Vapor Recompression systems that concentrate and crystallize solutes by recycling secondary vapor latent heat.

Zero Liquid Discharge

Solutions for high-salt wastewater treatment, water reuse, salt crystallization and resource recovery.

Battery Materials

Evaporation and crystallization applications for lithium-containing wastewater, battery materials and related resource recovery.

Chemical & Pharmaceutical Wastewater

Customized evaporation, crystallization and distillation solutions for high-salinity, high-COD and solvent-bearing streams.

Drying & Dust Collection

Fluidized bed, scraper dryer and dust-removal equipment for drying processes and waste gas purification.

Sunevap-Fabricated Equipment

Design and fabrication of customized equipment using 304, 316, 2205, 2507, titanium, Hastelloy, and other materials.

Sunevap manufacturing workshop
Why Sunevap

Company strengths

  • Founded in 2006 with MVR specialization

    Sunevap specializes in Mechanical Vapor Recompression technology for energy-saving industrial evaporation systems.

  • Full-scope engineering services

    Sunevap provides pre-sales consultation, process design, engineering and design, project execution, installation guidance, commissioning and ongoing support.

  • Changzhou and Luoyang manufacturing bases

    Sunevap operates two equipment manufacturing bases, with the Changzhou base featuring 25,000 m2 of modern workshop space.

  • Quality and compliance credentials

    Sunevap maintains ISO 9001, ISO 14001, ISO 45001, ASME U Stamp certification, CE-PED compliance, and a Special Equipment Production License for pressure vessel manufacturing.

  • R&D and laboratory support

    The Changzhou water treatment laboratory was established in 2017 and has provided over 2,000 water quality tests for over 1,000 projects worldwide.

Manufacturing Capability

Production and testing capabilities

Sunevap operates equipment manufacturing bases in Changzhou and Luoyang. The Changzhou base has 25,000 m2 of modern workshop space and 6,000-7,000 tons of annual equipment manufacturing capacity.

CNC machining center view 1

CNC Machining Centers

CNC machining centers support Sunevap's production and testing capabilities.

Automatic welding equipment view 1

Automatic Welding Equipment

Automatic welding equipment and welding process control support the manufacturing system.

Pressure vessel manufacturing

Pressure Vessel Manufacturing

Sunevap maintains ASME U Stamp certification and a Special Equipment Production License for pressure vessel manufacturing.

Assembly, commissioning and testing

Assembly, Commissioning & Testing

Factory assembly, piping, wiring, overall commissioning and performance testing are completed before delivery.

Certifications

Quality and compliance credentials

Sunevap maintains a comprehensive quality and compliance system, including ISO 9001, ISO 14001, ISO 45001, ASME U Stamp certification, CE-PED compliance, and a Special Equipment Production License for pressure vessel manufacturing.

Applications

Industries and Applications

Our solutions serve a wide range of industries and applications, including battery materials, wastewater treatment, rare earth processing, petroleum and oil & gas processing, Zero Liquid Discharge (ZLD), chemicals, pharmaceuticals, food and fermentation, mining, and resource recovery.

Battery Materials
Zero Liquid Discharge
Chemical
Pharmaceutical
Oil & Gas
Mining
Industrial Wastewater
Resource Recovery
Food Industry
Featured Products

Featured product lines

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Customized Large-scale Evaporation System

Customized Large-scale Evaporation System

This is a customized large-scale complete set of Mechanical Vapor Recompression (MVR) evaporation and crystallization equipment, focusing on core evaporation processes and suitable for industrial liquid conditions with high hardness, high salinity, strong corrosion and complex components. It fully supports material concentration and crystallization salt-making processes. The complete system takes the evaporation unit as the core, matched with evaporation heat exchange, vapor-liquid separation, crystallization, solid-liquid separation, vapor compression, automatic control and auxiliary supporting equipment. It supports full-process non-standard customized design according to users’ material characteristics, processing scale, process requirements and salt production indicators. With a low degree of modularization and no highly integrated skid structure, the equipment adopts a non-standard split overall supply mode. Conventional standard components are supplied and transported as complete sets. For oversized, ultra-wide and ultra-high components restricted by transportation conditions, on-site on-site fabrication and assembly can be carried out according to actual project conditions, or centralized fabrication and integrated commissioning at nearby ports before batch delivery. The whole project implementation relies mainly on on-site surveying, adaptive installation and overall commissioning. It can flexibly adapt to special scenarios such as irregular sites, ultra-large working conditions, remote projects and road transportation restrictions, effectively solving the industry pain points of traditional integrated equipment including difficult transportation, site entry limitations and poor adaptability to complex non-standard projects.

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Vacuum Scraper Dryer

Vacuum Scraper Dryer

1. Product Overview An externally heated conductive batch dryer, specially developed for high-concentration mother liquor discharged from MEE (Multi-Effect Evaporation) and MVR (Mechanical Vapor Recompression) systems. It is mainly used for volume reduction of high-concentration saline wastewater mother liquor, realizing drying and volume reduction via vacuum low-temperature heating and scraper stirring. It greatly reduces enterprise disposal costs, with corrosion resistance and stable operation, supporting fully automatic batch operation, and is suitable for high-concentration mother liquor treatment in chemical, environmental protection and other industries. 2. Working Principle • Heating & Vacuum Environment: The drying cylinder is heated by steam or thermal oil through its outer jacket, with a stable vacuum of -0.08~-0.09 MPa (-80~-90 KPa) maintained inside. • Feeding & Drying Process: Evaporated mother liquor is pumped into the storage tank, then quantitatively fed into the drying cylinder at one time via a flowmeter. The stirring shaft rotates forward and reverse regularly, driving scrapers to agitate the material, ensuring full contact with the cylinder inner wall. Heat is transferred through the cylinder wall, making the material boil at 40~50 ℃, and moisture evaporates under vacuum. • Steam Treatment & Recycling: Secondary steam generated by evaporation is purified by a dust collector and demister, then condensed into water in the condenser and stored in the condensate tank, which can be reused as reclaimed water or discharged after secondary treatment. • Batch Cycle: After the mother liquor is dried into solid, the system is vented, and the dry material (granular or powdery) is pushed out by scrapers, collected and packed via a chute. The whole process is fully automatic controlled by PLC, with automatic cycle switching after each batch. 3. Core Features - High Vacuum & Low Energy Consumption: Operating vacuum: -80~-90 KPa; evaporation temperature: 40~50 ℃. No scaling, large heat transfer temperature difference, low moisture content of discharged material, and lower energy consumption. - Integrated & Intelligent Control: Integrates feeding, evaporation, drying, defoaming, condensation, vacuumizing and discharging; easy to install. PLC full-automatic control, with logical algorithm to judge drying end point, automatically adapting to feed concentration changes, avoiding over-drying or under-drying, and requiring minimal manual intervention. - Corrosion Resistance & Durability: Material contact parts: 2205 stainless steel (optional: 2205/316L/Titanium); secondary steam and condensate contact parts: 316L stainless steel. Mechanical seals at both ends of the stirring shaft ensure reliable sealing and long service life. - Stable Vacuum System: Equipped with automatic defoamer dosing device and demister to intercept entrained materials. The demister is automatically cleaned before each batch to avoid affecting the vacuum system. - Strong Targeted Performance: Specially designed for MEE/MVR system discharged mother liquor, solving problems such as evaporator scaling, pipe blockage and reduced evaporation capacity caused by COD, Ca²⁺, Mg²⁺ enrichment, ensuring stable operation of evaporators. - Environmental & Economical: Low evaporation temperature, low organic content in effluent, less tail gas; condensate water recyclable. Realizes mother liquor volume reduction, greatly reducing hazardous waste disposal costs. 4. Applicable Industries Mainly applied in chemical, environmental protection and other industries, dedicated to drying and volume reduction of high-concentration saline wastewater mother liquor discharged from MEE and MVR systems. It can treat mother liquor after ammonia distillation, supports non-standard customization and turnkey projects, adapts to batch intermittent processing needs, helping enterprises solve high-concentration mother liquor disposal problems and maintain stable evaporator operation.

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Vibrating Fluidized Bed Drying Equipment

Vibrating Fluidized Bed Drying Equipment

This equipment is an integrated drying device adopting vibrating fluidized bed technology, mainly used for dehydration of powdery and granular materials. It is suitable for chemical, pharmaceutical, food, environmental protection and other industries, meeting the large-scale drying needs of various materials. Working Principle After pretreatment, wet materials are fed into the drying chamber. The vibrating device makes the materials in a fluidized suspended state, and the hot air is fully contacted with the materials to realize efficient heat transfer and moisture evaporation. The dried materials are screened and collected, and the tail gas is discharged up to standard after dust removal. The whole process is fully automatically controlled by PLC. Core Features 1. Uniform Drying: Vibrating fluidized state, uniform temperature and consistent finished product moisture, no local overheating; 2. Controllable Quality: Low-temperature gentle drying, retaining material activity, finished products without caking; 3. Customizable Adaptability: Processing capacity, parameters and materials can be customized, suitable for materials with 1.0%-30% moisture content, and the conventional processing capacity ranges from 100-1000kg/h; 4. Energy Saving: High thermal efficiency, recyclable hot air, lower energy consumption than traditional equipment; 5. Full-automatic Operation: PLC intelligent control, one-key start-stop, remote monitoring, easy maintenance; 6. Environmental Compliance: High-efficiency dust removal, up-to-standard emission, compact structure. Applicable Industries Chemical, pharmaceutical, food, environmental protection and other industries, including powder, waste salt drying, etc. It can dry materials after ammonia stripping, supporting non-standard customization and turnkey projects; the conventional processing scale is 100-1000kg/h. If a larger processing capacity is needed, it is recommended to choose a fluidized bed dryer to ensure the stability of equipment operation and avoid vibration component wear and equipment damage caused by excessive processing capacity.

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Drum Scraper Dryer

Drum Scraper Dryer

Drum Scraper Dryer is a continuous conductive drying equipment, mainly composed of a drum, film distribution device, scraping device, transmission device and heating medium inlet, outlet and drainage device. It takes heat conduction as the core to realize continuous drying of liquid materials. The material contact parts can be made of 316L/2205/Titanium, etc., adapting to large-scale drying needs of various materials, with continuous and efficient operation, stability and practicability, widely used in many industries. 2. Working Principle Heating medium (steam or thermal oil) is fed into the drum to provide a stable heat source. The drum rotates at a constant speed, and the feed liquid is evenly attached to the outer wall of the drum through submerged or spray film distribution device to form a film. The film is quickly dried by heat conducted through the drum wall, and the finished product is scraped and collected by the scraper system. The film distribution device is equipped with an overflow pipe to prevent feed liquid overflow, and the sewage outlet at the bottom of the feed liquid tank facilitates cleaning and maintenance. 3. Core Features - High Drum Precision and Strong Durability: The drum adopts rolled welding + integral thermal stress relief treatment, the surface is processed by multiple processes and chrome-plated hardening (hardness HRC65), with mirror roughness and drum surface runout ≤0.05mm; the internal groove diversion design improves heat transfer efficiency, the balance level is above G4, equipped with special equipment pressure vessel certificate, and the material contact parts can be made of 316L/2205/Titanium, etc., with long service life. - Reliable Scraper System and Uniform Scraping: Adopts pneumatic pressing device with adjustable pressing force; the scraper material matches the drum hardness, integral custom design, no scraping dead angle and no damage, the fixture can be flexibly disassembled and assembled, with excellent sealing and rigidity. - Reasonable Film Distribution System and Convenient Operation: Supports submerged and spray film distribution, the feed liquid tank is equipped with an overflow pipe and a sewage outlet, with uniform film distribution and convenient cleaning and maintenance. - Stable Operation and Strong Adaptability: The transmission system is stable, can realize continuous production, with stable running-in performance, adapting to materials of different viscosities and characteristics, simple operation and low maintenance cost. 4. Applicable Industries Widely used in chemical, food, environmental protection, pharmaceutical and other industries, suitable for continuous large-scale drying of various liquid materials, can handle high-viscosity, heat-sensitive and easy-to-crystallize materials, helping enterprises improve efficiency and reduce operating costs.

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Boiling Fluidized Bed Drying Equipment

Boiling Fluidized Bed Drying Equipment

This equipment is an integrated customized complete set for drying wet materials in a fluidized state, mainly used for dehydration of powdery and granular materials. With sufficient gas-solid contact and uniform drying, it is suitable for chemical, pharmaceutical, food and other industries, meeting the large-scale drying needs of heat-sensitive and easy-agglomeration materials. Working Principle After pretreatment, wet materials are fed into the drying chamber. Hot air blows through the distribution plate to make materials suspend and tumble to form a fluidized bed, realizing efficient heat and mass transfer and moisture evaporation. Dried materials are screened and collected, tail gas is discharged up to standard after dust removal, and the whole process is fully automatic controlled by PLC. Core Features Uniform Drying: Fluidized state, uniform temperature and consistent finished product moisture, no local overheating; Controllable Quality: Low-temperature gentle drying, retaining material activity, finished products without caking and good fluidity; Customizable Adaptability: Processing capacity, hot air parameters and materials can be customized, suitable for granular and powdery materials with moisture content of 1.0%-30%; Energy Saving: High thermal efficiency, hot air recyclable, energy consumption 15% lower than traditional equipment; Full-automatic Operation: PLC intelligent control, one-key start-stop, remote monitoring, easy maintenance; Environmental Compliance: Equipped with high-efficiency dust removal, dust emission up to standard, compact structure. Applicable Industries Chemical, pharmaceutical, food, environmental protection and other industries, including powder, traditional Chinese medicine particles, waste salt drying, etc. It can dry materials after ammonia stripping, supporting non-standard customization and turnkey projects, adapting to 1-30t/h processing scale.

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Dust Removal Equipment Supporting Drying Process

Dust Removal Equipment Supporting Drying Process

Drying and Dust Removal Equipment is a dust purification equipment specially designed for matching drying processes. Its core function is to capture solid particles generated during the drying process and realize the purification and emission of waste gas. The equipment covers two major types: dry method and wet method, which can be flexibly selected according to different working conditions. The dust removal effect can not only meet China's comprehensive emission standard of 10mg/Nm³ for solid particles, but also reach the clean air standard of 2mg/Nm³ or even 1mg/Nm³ according to international special cleanliness requirements, adapting to the dust control needs of various drying scenarios. 1.Main Equipment Types and Introduction - Cyclone Dust Collector: A dry dust removal equipment. It uses the principle of centrifugal force to make dust-containing gas rotate at high speed in the cyclone cylinder, separating and collecting dust particles. It has simple structure, stable operation and low energy consumption. It is suitable for capturing dust with larger particle size and is often used as a pretreatment equipment or auxiliary dust removal equipment. - Bag Type Dust Collector: A dry dust removal equipment. It mainly uses filter bags to filter dust-containing gas. Dust particles are intercepted by the filter bags, and the purified gas is discharged. It has high dust removal efficiency, is suitable for various particle sizes of dust, especially fine particles, and has flexible operation. It can adjust filtering parameters according to working conditions and has a wide application range. - Sintered Plate Dust Collector: A dry dust removal equipment. It uses a sintered plate as the filtering element, which has the characteristics of wear resistance, corrosion resistance and anti-condensation. It has high filtering precision, is not easy to block, and is convenient to maintain. It is suitable for dust control scenarios with high humidity, high viscosity dust and corrosive gas. - Precision Filter: A dry high-precision dust removal equipment. It adopts high-precision filtering materials, which can effectively capture fine dust particles. The dust removal precision can reach 1mg/Nm³. It is suitable for scenarios with extremely high requirements on exhaust gas cleanliness, such as precision drying and clean production. - Water Curtain Dust Collector: A wet dust removal equipment. It intercepts dust-containing gas by forming a water curtain. Dust particles settle after contacting with water to achieve dust removal and purification. It has simple structure and low cost, and has dual effects of cooling and dust reduction. It is suitable for drying scenarios with high dust concentration and high temperature. 2.Core Features - Flexible Selection: It covers various types of dry and wet methods, and can flexibly select suitable equipment according to dust characteristics, working conditions and cleanliness standards. - High Dust Removal Efficiency: Under normal working conditions, it can meet the national comprehensive emission standard of 10mg/Nm³, and can reach the clean air requirements of 2mg/Nm³ and 1mg/Nm³ for special requirements. - Independent Operation: It does not need to be combined with the drum scraper dryer, and can be used alone for dust control in various drying processes with strong adaptability. - Stable Operation: All types of equipment have mature structures, convenient maintenance, can operate stably for a long time, and adapt to continuous production needs. 3. Applicable Industries It is widely used in various industries that need supporting drying processes, such as chemical industry, food industry, pharmaceutical industry, environmental protection industry and building materials industry. It can be used for dust control of various drying equipment such as drum drying, spray drying and airflow drying, effectively solving the problem of dust pollution during the drying process, ensuring the up-to-standard emission of waste gas, and meeting the enterprise's environmental compliance requirements.

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Integrated Single-effect or Multi-effect Evaporation System

Integrated Single-effect or Multi-effect Evaporation System

This system is an integrated skid-mounted single-effect or multi-effect evaporation device. The entire main evaporator, heat exchange equipment, pipelines, instruments, valves and automatic control system are integrally installed on a standardized shared skid. All processes including assembly, piping, wiring, overall commissioning and performance testing are completed in the factory to meet production standards before delivery. No complicated civil construction and on-site equipment assembly are required. The equipment can be quickly installed and put into operation only by connecting water supply, power supply, feeding, discharging and auxiliary utility pipelines, which greatly shortens the project construction cycle and effectively reduces on-site construction and commissioning costs.

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Integrated Skid-Mounted MVR Evaporation System

Integrated Skid-Mounted MVR Evaporation System

This system is an integrated skid-mounted Mechanical Vapor Recompression (MVR) evaporation device. All equipment, pipelines, instruments, valves and control systems are pre-integrated and installed on a shared skid. The complete assembly, commissioning and performance testing are finished in the factory. After the equipment arrives at the project site, it can be officially put into operation in a short time only by connecting water supply, power supply, feeding, discharging and auxiliary pipelines, which greatly shortens the on-site construction cycle and reduces the difficulty of installation and construction.

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Complete Set of MVR-Distillation Coupling Equipment

Complete Set of MVR-Distillation Coupling Equipment

This equipment is an integrated customized complete set with MVR (Mechanical Vapor Recompression) + distillation separation as the core processes. It is mainly used for the purification and separation of high-concentration organic solutions, solvent recovery and high-salt organic wastewater, realizing material purification, solvent recovery and energy saving. It is widely used in chemical, pharmaceutical, environmental protection and other industries, especially suitable for DMF organic wastewater treatment and solvent recovery scenarios.

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Design- Production and Fabrication of Customized Evaporation Equipment

Design- Production and Fabrication of Customized Evaporation Equipment

We possess full-capability independent design and drawing processing services for non-standard equipment. We support professional equipment design and precision processing for various anti-corrosion and special materials, including 304, 316, 2205, 2507, titanium material and Hastelloy. In accordance with customer requirements, we can conduct the research, design and production of customized evaporation equipment complying with domestic and international mainstream standards including GB, ASME, EN and Russian standards. We provide full-process support for various compliance certifications, covering authoritative international certifications such as CE, UL and CUTR, fully meeting project access and engineering construction standard requirements of different countries and regions worldwide.

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