Company Profile

Hebei Mingji Chemical Technology Co., Ltd. provides Turn-key solution of industrial evaporation, crystallization and drying.

Mingji is high-tech enterprise integrating R&D, production, installation and commissioning and aftersales service of industrial evaporation, crystallization and drying machinery. 

With a professional technical team covering chemical process engineers, chemical equipment engineers, electrical and instrumentation engineers, as well as quality inspection and chemical equipment manufacturing technicians, Mingji is committed to providing customized machinery tailored to specific needs.

The Company's major customers include Sichuan Hongjian Heavy Industry Machinery Manufacturing Co., Ltd. (Angang Steel Group), CNMC Ruimu New Energy Technology Co., Ltd. (China Minmetals Corporation), Tangshan Sanyou Yuanda Fiber Co., Ltd., Jinchang Shenni Technology Co., Ltd., Changsha Research Institute of Mining and Metallurgy Co., Ltd. (China Minmetals Corporation), CSPC Xinnuowei Pharmaceutical Co., Ltd., Guangdong Jiana Energy Technology Co., Ltd., Hebei Yadong New Energy Materials Co., Ltd., Beijing QX Environment Technology Co., Ltd., Ningxia Baichuan New Materials Co., Ltd., Deyang Weixu Lithium Battery Technology Co., Ltd., Shanxi Jinlan Chemical Co., Ltd., Tianjin Maolian Technology Co., Ltd., Qinzhou Nanhai Chemical Technology Co., Ltd., Linyi Jinlang Chemical Co., Ltd., and Hengxin Runfeng Technology Development (Beijing) Co., Ltd.

 

Core Products

Our main products include a full range of chemical unit operation equipment, focusing on evaporation, crystallization and drying machinery, including

· Multi-Effect Evaporator

· MVR (Mechanical Vapor Recompression) Evaporator

· TVR (4 effect Thermal Vapor Recompression) Evaporator

· Oslo Continuous Crystallizer

· DTB Crystallizer

· Disc Dryer

Industry Applications

Up to 2026, 330+ projects, over 10 million ton/year capacity has been delivered by Mingji.

With mature and stable technology and numerous successful cases, our equipment has been widely applied in various industries. including:

· Fertilizer Industry

· Hydrometallurgical industry

· Molten Salt Industry

· Fine chemical and intermediate industry

· Pharmaceutical, biopharmaceutical and fermentation industry

· Coal Chemical Industry

· Petro Chemical Industry

· Environmental Protection Industry

Our Commitment

Hebei Mingji Chemical Technology Co., Ltd. is dedicated to providing global customers with advanced process technology, high product quality and professional after-sales service. We look forward to establishing long-term and stable cooperative relationships with customers around the world and creating win-win development together.

 


Multiple Effect TVR Evaporation System

Mingji provides customized TVR evaporation system solutions for fertilizer, hydrometallurgy, fine chemical, pharmaceutical, petrochemical, and environmental industries. Our industrial TVR evaporators utilize thermal vapor recompression technology to recycle waste steam via steam jet compressors, achieving 30-50% energy savings compared to conventional multi-effect systems. With stable operation, low maintenance, and fully automated control, TVR offers an economical balance between MVR and traditional evaporation. With 330+ projects delivered, Mingji offers turn-key installation, 24/7 after-sales support, and tailored designs for your specific production needs.

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Product Introduction of Multi-Effect TVR Evaporator

The multi-effect TVR (Thermal Vapor Recompression) evaporator is an energy-efficient device that combines multi-effect evaporation with TVR technology. The core principle is to use a steam ejector to compress and heat up part of the secondary steam and mix it with the primary steam as the heat source. Combined with multi-effect series to utilize steam heat, significantly reduce the consumption of primary steam, balance energy efficiency and stability, suitable for medium and large-scale material handling, widely used in concentration, crystallization and wastewater treatment in various industries, the consumption of steam per ton of water evaporation is further reduced compared with multi-effect evaporation.

1. Scope of application

Application areas

Core Uses

Fertilizer

Fertilizer raw material concentration, by-product crystallization, suitable for multi-effect continuous production, balancing capacity and energy consumption

Inorganic salts

Evaporation crystallization of various inorganic salts, suitable for high-concentration feed solutions, with outstanding energy-saving effects

Hydrometallurgy

Concentration of metallurgical feed liquid, recovery of heavy metals, tolerance to high corrosion conditions, multi-effect series to enhance processing efficiency

Fine chemical intermediates

Intermediate concentration, solvent recovery, suitable for medium viscosity materials, TVR technology reduces heat loss

Biofermentation

Fermentation broth concentration extraction, multi-effect low-temperature section design, combined with TVR energy saving, product activity retained

Environmentally friendly

High-salt wastewater concentration treatment, suitable for various refractory wastewater, multi-effect TVR significantly reduces steam consumption

Coal chemical industry

Coal chemical wastewater concentration, material recovery, tolerance to high boiling point rise, highly corrosive liquid, stable operation

Petrochemical industry

Refining wastewater treatment, solvent recovery, suitable for high salt and high oil conditions, with efficiency and energy savings


2. Technical forms and materials


Technical form (multi-effect TVR)

Core Features

Common materials and compatibility

Multi-effect parallel flow +TVR

Easy to operate, highly energy-efficient, suitable for low-viscosity, low-boiling-point materials, high steam utilization

304/316L stainless steel (low corrosion), 2205 duplex steel (medium to high corrosion), titanium, Hastelloy (extreme corrosion), PTFE lining

Multi-effect countercurrent +TVR

Uniform heat transfer, good anti-scaling, suitable for high-salt, high-viscosity, high-boiling-point materials, stable processing

304/316L stainless steel (low corrosion), 2205 duplex steel (medium to high corrosion), titanium, Hastelloy (extreme corrosion), PTFE lining

Multi-effect cross-flow +TVR

It is suitable for complex materials, avoids scaling and clogging, operates flexibly, and takes into account energy conservation and compatibility

304/316L stainless steel (low corrosion), 2205 duplex steel (medium to high corrosion), titanium, Hastelloy (extreme corrosion), PTFE lining


Iii. Energy Consumption Parameters

Project

Core Parameters (Multi-effect TVR)

Steam consumption

Save 15%-25% more energy than ordinary multi-effect evaporators

Electricity consumption

4-8kWh per ton of water, mainly for circulation pumps, vacuum pumps and auxiliary steam ejectors

Compared with the same kind

It saves steam compared to ordinary multi-effect devices and costs less than MVR devices, making it suitable for scenarios with abundant steam and a preference for cost-effectiveness


4. Core Advantages and Services

Energy-efficient, mature technology, stable operation, large processing capacity, cost-effectiveness and compatibility; We can customize multi-effect TVR combinations based on the characteristics of customer materials and provide one-stop services including equipment manufacturing, installation and commissioning, and post-operation and maintenance to help enterprises achieve efficient concentration, energy conservation and emission reduction, and environmental compliance.

 
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