Yunnan Donghun Building Materials Technology Co.

It is a supplier specializing in the research and development, production and sales of high-performance cement grinding aids and cement water reducing agents.


Quality develops the market, service unites people

Based on the principle of "technology creates value, innovation improves efficiency", creating value for customers, creating opportunities for employees and creating benefits for society


Perseverance, pragmatism, innovation, honesty and trustworthiness

The products have been promoted and used in many national key water conservancy projects, highways, railroad construction and large real estate projects.

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It is a supplier specializing in the research and development, production and sales of high performance cement grinding aids and concrete water reducing agents!

Donghun was established on December 15, 2014, and the company headquarters is located on the 53rd floor of the north tower of Wanda Plaza, Hope Road, Xishan District, Kunming City. The factory is located in Xiaozhai Industrial Park, Malong District, Qujing City, 8 km from Malong Railway Station and 5 km from the county, covering an area of about 15,000 square meters; the enterprise has 5 fully automatic grinding aid production lines and 5 fully automatic polycarboxylic acid water reducing agent production lines, with the average daily production of grinding aid and water reducing agent reaching about 1,000 tons.


Company News

Always adhere to the principle of quality for development and quality for survival, and continue to improve the service of Donghun building materials

Industry News

Sincerely welcome the national seed industry colleagues and all friends to visit the guidance


Correct perception of abrasives

Many cement enterprises are first to see the grinding aid offer, and then do the test, so that the excellent grinding aid blocked out of the enterprise. The main purpose of cement enterprises using grinding aids is to save energy and reduce consumption, improve the performance of cement, can not only look at the price, only the low purchase price as the winner. The amount of grinding aid brought into the cost is not a measure of the excellent standard of grinding aid, excellent evaluation of the effect of grinding aid is to bring the amount of economic benefits and cement performance improvement. Due to the lack of comprehensive communication, enterprise personnel individually consider the gatekeeper of their respective jobs and give too many definitions to the procurement and use effect of grinding aids, thus affecting the actual use effect of grinding aids in enterprises. In fact, the purchase of grinding aids should first do a large grinding production test, and then according to the actual test effect, cost performance, etc. to tender.


We can see the glory of Conch today, but we can't forget the vicissitudes of Wuhu industry in the past.

July 22 is a day to remember the history of Wuhu's industrial economic development. On that day, Fortune magazine released the list of the world's top 500 companies, and Conch Group ranked 441st, achieving a zero breakthrough for Anhui local enterprises to be listed in the world's top 500. From settling in Wuhu to going global, the rapid and high-quality development of Conch Group over the past 20 years has given birth to an enterprise with global influence in this open and hot land of Wuhu.


Limited time to rectify! TCC and CR Cement mines on the list of regional rectification

According to the Notice, according to the requirements of the relevant documents, Guigang City Emergency Management Bureau hired Guangxi Industrial Architectural Design and Research Institute Co., Ltd. to conduct a safety production hazard survey of eight enterprises under the jurisdiction of Qiantang District, such as China Resources Cement (Guigang) Co.


Crusting, accumulation, clogging and control of kiln tail system of rotary kiln decomposition kiln

The popularization and application of kiln decomposition kiln has promoted the rapid development of China's cement industry, significantly increased the scale and production capacity of cement production, played an extremely important role in reducing consumption and improving product quality, and is the current development direction of China's cement industry. However, there is a common problem in the production process line of pre-calciner kiln which has been put into production in China, that is, the kiln tail system - preheating system and decomposer crusting, material accumulation and blockage. System crust, accumulation of material, affecting the ventilation and material flow, resulting in blockage; once the system is blocked, the thermal system is disrupted, seriously affecting the quality of kiln production, and dealing with blockage, it is more difficult to resume production, and worse, the blockage of collapsed material caused by personal injury or death. How to correctly understand and seriously treat this objective phenomenon, recognize the various hazards it will bring to the production; effectively through some necessary control means and certain process processing measures, scientific prediction and prevention, is the key to ensure the smooth production, to ensure the safety of the process facilities, the advantages of the system.


What is a grinding aid?

What is an abrasive aid! It is an additive to improve the efficiency of grinding. It can generally be glass beads, quartz sand, etc. To improve the grinding efficiency and reduce the power consumption of grinding operation is an effective means to improve the economic efficiency of cement enterprises, in order to achieve this purpose, domestic cement enterprises generally take two measures: one is to improve the structure of the grinding machinery, improve the grinding process and the way to make more institutions can act on the material through the grinding media; another method is to add a trace or a small amount of additives in the grinding process, that is, grinding aids to influence the mechanical and chemical processes in the grinding The other method is to add trace or small amount of additives to the grinding process, i.e. grinding aids to influence the mechanics and chemistry of the operation, so as to achieve the purpose of improving grinding efficiency. The latter has the advantages of low investment, quick results, simple operation, and can improve the physical properties of cement, etc., and has been gaining more and more attention.


Push the bar grate cooler common mechanical problems and treatment

In terms of machinery, the grate cooler in the cement industry is conveying equipment, because it is conveying high-temperature clinker, the working environment is relatively harsh, coupled with the function of thermal energy replacement, directly related to the recovery of heat, so it is particularly important. Now on its operation of the mechanical failure form and processing methods, make a brief introduction.

Technology Innovation

Our company is committed to the process, equipment, product performance and other aspects of innovation, applied for a patent for invention, utility patents for two qualifications are under review. At present, our self-developed grinding aid fully automatic dosing equipment has been put into use among many customers and has been widely praised!


Customer Distribution

We are the first company in the field of cement grinding aid in southwest China to propose and advocate the concept of "one mill, one case". Our company ranks among the top three in the market share of cement grinding aids in southwest China. Our products are used by customers in Yunnan Province, Hubei, Sichuan, Guizhou, Guangxi, Guangdong, Gansu and other parts of the country, and exported to Laos, Myanmar and so on. Our customers include group customers, large, medium and small cement plants, grinding stations and commercial concrete enterprises.


After Sales Service

Our company promises to provide customers with all kinds of products will maintain the same quality, in strict accordance with the quality policy of "strict and precise, continuous improvement, product quality, customer satisfaction" to organize the production of products and provide a full range of services.


The company has set up a professional R&D center, procured professional laboratory equipment for grinding aids and water reducing agents, and the central laboratory is staffed by five researchers specializing in polymer chemistry, three senior technicians in charge of compounding, and two electrical automation engineers, who are responsible for the company's product development, supporting artificial intelligence production equipment and refinement and upgrading of dosing equipment.

Contact information

Address:53rd Floor, North Tower, Wanda Twin Towers, Xishan District, Kunming

Telephone Fax:0871-63575912

Mobile: Mr. Zhang:18787028156

                 Mr. Liu:18687120789


Donghun Building Materials Division

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图片ALT信息: Yunnan Donghun Building Materials Technology Co.