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Daye Peak Held Seminar on Low-Alkali Cement Production

Release time:

2020-07-22

Daye Peak Held Low-alkali Cement Production Seminar

News In order to ensure the quality of low-alkali cement to meet the requirements of key project contract indicators, to increase the market share of "Peak " brand cement high-end products, 5# December, Daye Peak Cement Company organized a special seminar, special discussions on low-alkali cement ingredients, production, quality management and other matters.

low-alkali cement refers to cement with low content of alkali metal oxides (potassium oxide and sodium oxide) (total alkali content is calculated as equivalent sodium oxide (Na2O + 0.658K2O ), and low-alkali cement requires total alkali content lower than 0.6% ). In engineering construction, the alkaline substance in the concrete raw materials chemically reacts with the active ingredients to generate swelling substances or water-absorbing swelling substances, which in turn causes the concrete to produce internal self-expansion stress and crack, which is called "alkali aggregate reaction " (abbreviated as AAR) . Because the alkali aggregate reaction generally occurs gradually after several years after the concrete is formed, the durability of the concrete is reduced as a result, and in severe cases, the concrete will lose its use value. Moreover, because the reaction occurs in the whole concrete, the damage caused is difficult to prevent, prevent, repair and rescue, and is called "concrete cancer " . Therefore, many projects, especially railways, bridges and other large-scale projects require the use of low-alkali cement. Since its production, Daye Peak has participated in the construction of key projects in many countries, provinces and cities, and has accumulated a lot of experience in the production of low-alkali cement.

The production of low-alkali cement requires the use of low-alkali clinker, low-alkali gypsum and low-alkali mineral admixtures. Low alkali clinker must be produced with low alkali limestone and other low alkali raw materials. At the seminar, Daye peak management team and quality control department, manufacturing department, mining and other relevant personnel attended. Combined with the limestone resources and early production experience of Daye Peak Mine, a detailed and comprehensive discussion was carried out. The Quality Control Department puts forward a plan for the batching scheme and process control of low-alkali cement, and formulates detailed alkali control measures from the work links such as the quality control of mine limestone, the substitution of low-grade sandstone for clay batching, and the adjustment of mixed material varieties. The mining department, manufacturing department and other relevant departments put forward their views and suggestions on the problems that may be faced in the actual production process.

Daye Peak requires all relevant departments to attach great importance to and cooperate closely, optimize the production organization in strict accordance with the predetermined quality control index requirements, and minimize the adverse factors affecting the operation quality of the kiln, so as to ensure the high quality and high yield of the kiln, ensure the stable production of low alkali cement, and provide customers with high-quality products. (Wang Yuhua Fan Liangwu)

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A few days ago, Tianjin Jianfeng Natural products Research and Development Co., Ltd. stood out among nearly 35000 enterprises in Tianjin Development Zone and won the honor of "Top 20 Scientific and technological Innovation Enterprises of 2015. The selection criteria for the top 20 scientific and technological innovation enterprises in Tianjin Economic and Technological Development Zone mainly include: they have won science and technology awards or patent awards in 2015, as well as other awards above the provincial level; they have obtained the qualification certification or approval of research and development institutions above the provincial level; in 2015, the number of invention and utility model patent applications and authorizations was large, totaling more than 15; in 2015, they were supported by national or Tianjin key science and technology plans; scientific research achievements have made significant progress and technology. According to the above standards, Jianfeng Natural Products Company has not only won the second prize of Tianjin Science and Technology Innovation Project Award for the achievements of "Tianjin Plant Waste Reutilization Technology Engineering Center Construction", but also completed the process research of grape seed extract and ginsenoside to pesticide residues, and formulated the international business standard of grape seed extract (grape seed oligomeric proanthocyanidins). In order to better carry out the pilot experiment, large-scale technical transformation was carried out on the second workshop, and the process optimization of extracting anthocyanins from blueberries has been carried out. At the same time, the main business income, operating profit, tax revenue and other economic indicators of peak natural products company in 2015 have increased significantly year-on-year. Relying on the advantages of excellent quality, good efficiency, great contribution, safety and environmental protection, and good social responsibility, Jianfeng Natural Products Company successfully passed the review and became one of the "Top 20 Scientific and Technological Innovation Enterprises in 2015" in Tianjin Development Zone. (

2020

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2020

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Peak pharmaceutical "enterprise information construction project" through the acceptance

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