Cement Manufacturers Association (CMA)

41 are the bricks, which can initiate fastest coating formation and which have relatively reduced reactivity with the clinker melt. Many kilns use burnt dolomite and more common is magnesia chrome and magnesia -hercynite brick for the sintering zone. Chromite increases the thermal shock resistance and corrosion resistance of the MgO bricks and these bricks are very resistant to corrosion of varying basicity concerning application for bricks containing chromite. It is very important to consider the possible hazards to our environment. Therefore, more recently magnesia- hercynite bricks are used in rotary kilns where a suitable content of Fe Al2O4 is used in grain form. Hercynite is again a spinel and capable to reduce the brittleness of magnesia products thus enhancing the flexibility. Tip casting, bull nose and burner pipe: The above three areas are also very important and affect the running of the kiln. All these areas have high abrasion at elevated temperature and also are prone to thermal shock and low cement formulation with approximately 90 per cent Al 2 O 3 , i.e., corundum based is the most suitable material. LCC castables based on 90 per cent alumina and lime content being close to 2.5 per cent the strength level is substantially higher because of high bulk density, lower porosity and high thermal conductivity. The properties to combat thermal shocks and high abrasion have been achieved by controlled inclusion of reactive alumina with large specific surfaces. Further assistance has been provided by the suitable selection of deflocculation systems through commercially available long chain phosphates. Conclusion In summary, advancements in refractories continue to shape the cement industry, enabling efficient production, environmental compliance, and sustainable growth. The design and selection of the refractory should be done on the basis of careful analysis of service conditions, availability of refractory materials, thickness requirements, anchorage, ease of installation and future repair and maintenance. Adequate knowledge on operating conditions that are active—such as temperature, pressure, chemical attack, thermal shock, abrasion, erosion, furnace gas composition, mechanical movement, vibration, etc.—should be very useful for the optimum lining design and selection of refractory. Invotech Industrial Solutions Private Limited keeps itself abreast of latest development in Cement Industry so as to cater the need of the industry using latest technology and quality systems. Also, with a view to retain the requisite competitive edge in the market, participated in various Seminars, details as under: - 1. Presented paper at “Best Practices in Energy Efficiency in Cement Sector- A path for Decarbonization “ under the Knowledge Sharing Platform initiative on 14 th March 2023 in Udaipur at Radisson Hotel. 2. 15 th , 16 th & 17 th NCB International Seminar on cement, concrete & building materials held from 5 th to 8 th Dec, 2017 and 3 rd to 6 th Dec, 2019 and 6 th to 9 th Dec, 2022 at Manekshaw Center, New Delhi. 3. “National workshop cum technology exhibition to promote energy efficient & cleaner production for sustainable industrial growth” held from 8 th to 9 th March, 2018, at India Habitat center, New Delhi, where presented a Technical Paper on “SIGNIFICANT SAVINGS IN ENERGY THROUGH FALSE AIR REDUCTION” & received an award for “UPCOMING ENTREPRENEUR IN THE FIELD OF ENERGY EFFICIENCY” presented by Mr. Pankaj Kumar, Secretary, Bureau of Energy Efficiency. 4. 14th Green Cementech in 2018 held from 17th to 18 th May, 2018 at Hyderabad International Convention Center, Hyderabad where we presented Technical Paper on “Enhancing Energy efficiency in Captive Power Plants by reduction of False Air”. Also attended 16 th Green Cementech in 2020 through Online mode. 5. ARTICLES PUBLISHED IN PRESTIGIOUS PUBLICATIONS • CMA’s Technical Journal “CEMENT ENERGY & ENVIRONMENT” 1. “ENERGY SAVINGS THROUGH FALSE AIR REDUCTION”, Vol. 17 No. 1 (Jan – Jun 2018). 2. “ENERGY SAVINGS BY REDUCTION OF THERMAL LOSSES FROM KILN SHELL”, Vol. 18 No. 1 (Jan – Jun 2019). 3. Our latest article COMPRESSED AIR SAVING DEVICE “A PORTABLE, ECONOMIC HOT SPOT COOLING SOLUTION TO PLUG AND ELIMINATE ROUTINE ENERGY WASTE IN CEMENT PLANTS”, Volume 20, No. 01 (Jan-June 2021) 4. USE OF AFR IN CEMENT INDUSTRY: NEED OF THE HOUR”, Vol XXI-I (Jan – Jun 2022). • INDIAN CEMENT REVIEWMagazine