Conch Kawasaki

Anhui Conch Kawasaki Engineering Co., Ltd. (ACK), founded in 2006, is a Sino-Japanese joint venture company between Wuhu Conch Investment Co., Ltd., a subsidiary of China Conch Venture Holding Co., Ltd., and Kawasaki Heavy Industries, Ltd., with a registered capital of CNY 100 million.In 2016, the company responded to the Belt and Road Initiative actively and has expanded its overseas energy-saving and environmental protection business vigorously. The company invested and established Shanghai Conch Kawasaki Engineering Co., Ltd. (SCKE) in Shang More >

WHR System in Cement Plant

 

Introduction of WHR System in Cement Plant The waste heat power generation system installed at the cement production line mainly utilizes the waste heat resources of the grate cooler and preheater of the clinker production line to build a pure low-temperature waste heat recovery power plant. It is mainly composed of a steam turbine & generator unit and its auxiliary equipment, PH boiler, AQC boiler, cooling tower, demineralized water treatment plant, etc. Combined with the characteristics of waste heat resources and the purpose of "determining electricity by waste heat resources", aiming at the characteristics of high fluctuation of waste heat temperature and flow of the new dry process cement kiln system, Conch Kawasaki has studied and developed the pure low-temperature and low-pressure flash thermal system technology. The process flow of the whole thermal system is a complete process of water vapor recycling. Waste heat recovery boilers are respectively set at the grate cooler side and preheater side of the clinker production line for heat exchange. The superheated steam generated after heat exchange is led into the steam turbine for work done, and the steam turbine drives the generator to generate electricity. Technology Features 1. Conch Kawasaki is the pioneer of the waste heat recovery power plant in the cement industry in China who has rich industry experience and has conducted in-depth research on the characteristics of different industrial waste gas resources. Relying on the technical support of Kawasaki Heavy Industries, Ltd., Conch Kawasaki can develop a proprietary high-efficiency thermal system and waste heat recovery boiler for different waste gas resources to ensure the organic combination of power generation system and clinker production line system. It can realize the utilization of waste heat truly on the premise of not increasing the coal consumption of the clinker production line system. 2. Conch Kawasaki has a highly skilled technical team with strong design ability. The company uses internationally advanced design software to ensure the system safety, beautiful layout, high efficiency, and accuracy of the drawing. Also, our design can meet the requirements of the National Standard of P.R. China, American Standard, Japanese standard, and other design specifications according to the needs of the project. At present, Conch Kawasaki's reference projects cover more than ten countries such as China, Japan, Thailand, and Laos. 3. Conch Kawasaki’s WHR system has high reliability and good stability. The intelligent distributed control system developed by Conch Kawasaki has stable and reliable operations, high labor productivity, high automation, and high intelligence. It effectively reduces the labor intensity of the factory and improves the operation reliability of the WHR system. Up to now, Conch Kawasaki has contracted more than 250 sets of WHR plants, involving hundreds of clinker production lines in China and overseas. The market covers many provinces, cities, and autonomous regions in China, Thailand, Myanmar, Japan, and other countries, with a total installed capacity of 3022 MW. The annual power generation is expected to be 22.97 billion kWh, which will reduce 21.2 million tons of carbon dioxide and save 8.27 million tons of standard coal per year. The contribution to environmental protection and economic benefits is significant.
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Introduction of Stoker Type Waste Incineration Power Generation Technology

 

Introduction of Stoker Type Waste Incineration Power Generation Technology Considering China's national conditions, Conch Kawasaki has introduced, digested, and absorbed the advanced technology of Kawasaki Japan, and developed the stoker type waste incineration power generation technology. There are no special requirements for site selection, no need for waste sorting, and no need to add additional fuel. The whole disposal process is done in a sealing condition with no odor diffusion. The harmful substances like dioxins are removed through high temperatures completely. This technology meets the requirement of "Reduction, Recycling, Harmlessness" for waste disposal. Considering the needs of different capacities for urban and rural waste disposal, Conch Kawasaki has developed a series of stokers, with a daily treatment capacity from 200 tons to 800 tons for each stoker. Technology Features 1、No special requirements for site selection: The project can be built in the residential area and has no impact on the residents' daily life. 2、High adaptability of waste: There is no need for sorting and crushing waste. Waste collected in different seasons and of different calorific values can be disposed of. 3、Complete decomposition of harmful substances: It can ensure the decomposition of dioxins, solidification of heavy metals, synchronous digestion of sewage, and no diffusion of odor through various advanced technical methods.The “Reduction, Recycling, Harmlessness” is realized truly. The secondary pollution is completed disposed of. 4、High power generation: It makes full use of waste heat, adopts low air ratio combustion, and uses a high-efficiency waste heat recovery boiler to generate more power. Up to now, Conch Venture has contracted 72 WtE projects which are distributed in 18 provinces (municipalities, autonomous regions) in China, Vietnam, and Sri Lanka. The annual treatment capacity achieves 17.57 million tons. 29 plants are already put into operation with an annual treatment capacity of 5.73 million tons. The annual treatment capacity of four other waste disposal projects is 0.33million tons.
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Industrial Solid Waste and Hazardous Waste Disposa

 

Introduction of Industrial Solid Waste and Hazardous Waste Disposal System The technology of industrial solid waste and hazardous waste disposal via cement kilns: Cement kiln can simultaneously dispose of a variety of solid (hazardous) wastes with strong adaptability, which includes general industrial solid wastes and hazardous wastes. This technology utilizes the cement kiln’s characteristics of high combustion temperature and long combustion time to use industrial waste as raw materials for cement production and turns waste into treasure. It has truly achieved no ash and slag discharge, no odor diffusion, no sewage residue and has a good solidification effect on heavy metals. It has truly realized “Reduction, Recycling, Harmlessness” and completely disposed of the secondary pollution. It is currently one of the most economical, thorough, and environmental-friendly treatment methods. Technology Features 1、Utilizing Resources & Saving Land: For Industrial solid waste and hazardous waste disposal via cement kilns project, the project is built in the cement plant. There is no need for land expropriation and demolition. The precious land resources are saved. 2、Complete Treatment & Comprehensive Utilization: The processing temperature is high which can degrade harmful components fully and realize stable solidification of heavy metals. There is no secondary waste residue. It achieves “complete treatment & comprehensive utilization " thoroughly. The waste can be used as an alternative fuel or raw materials for cement plants to achieve full resource utilization. 3、Wide Range of Applications & Strong Treatment Capabilities: The technology can dispose of 42 out of 46 categories of hazardous waste. It has a wide range of applications and strong treatment capabilities. It can also co-process municipal sludge, contaminated soil, etc. 4、Adaptation to Local Condition & Various Treatment Methods: According to the generation of solid and hazardous wastes, various treatment measures can be taken according to the local conditions. Solid (hazardous) wastes that can be disposed of via cement kiln will be preferentially disposed of in cement kiln. In areas without cement kiln, technologies such as resource recovery and comprehensive utilization or dry distillation pyrolysis will be used. Up to now, Conch Venture has contracted 90 sets of industrial solid waste and hazardous waste treatment projects which are distributed in 21 provinces (municipalities, autonomous regions) in China. The annual treatment capacity achieves 11.12 million tons. 37 projects are already put into operation with an annual treatment capacity of 4.08 million tons, among which the annual hazardous treatment capacity is 1.9 million tons.
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News & Events

2022-09-28

An invention patent of waste heat boiler of Haichuan Engineering Company Won the 8th Anhui Patent Excellence Award

Recently, Anhui Provincial Market Supervision and Administration Bureau issued the eighth 2021 invention patent award, among which o...