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Achieving Net Zero is an inspiring challenge

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Jayaram S Reddy, CMD, Promac India delves into their pioneering technologies, sustainability initiatives and their role in driving decarbonisation within the cement industry while aligning with the Net Zero mission.

Your collaboration has been long-standing. How has it impacted EPC solutions, and what has been its broader impact on the cement industry?
Our collaboration began in 1987, making it nearly 35 years of a productive partnership. This long-standing relationship has allowed us to bring world-class, cutting-edge technologies to Indian projects as well as international markets. By manufacturing all our equipment in India, in alignment with the government’s ‘Make in India’ initiative, we ensure that our solutions are both technologically advanced and cost-effective. This has not only benefited Indian customers but has also supported our exports to regions like the Middle East and Africa, providing these markets with affordable yet state-of-the-art equipment.
Our collaboration has had a transformative impact on the cement industry by offering efficient, reliable, and sustainable solutions. This partnership ensures that our clients access innovative and economically viable technology, improving their operations while contributing to global industrial advancements.

Could you highlight any specific features of the bioprocessing units you offer and explain how they benefit the cement industry, particularly in the context of decarbonisation?
Decarbonisation in the cement industry can be achieved through several approaches, with the reduction of reliance on fossil fuels being the most effective. Our bioprocessing solutions, such as the Taiheiyo Thermal Reactor (TTR), play a crucial role in this process. The TTR technology allows for the efficient use of alternative fuels, such as waste materials from other industries with calorific value. These fuels, including plastics, paper waste, and Refuse-Derived Fuel (RDF), are gassified in the TTR to harness their energy potential.
This process not only substitutes traditional fossil fuels like coal, oil, or natural gas but also optimises the burning conditions in the pyroprocessing unit. By reducing fossil fuel dependency and utilising waste, the TTR significantly aids in decarbonisation efforts while ensuring process efficiency.

How does your technology adapt to the evolving use of alternative fuels and raw materials in the cement industry?
Our TTR technology is designed with inbuilt adaptability, making it compatible with various types of alternative fuels. Whether it’s plastics, paper waste, or RDF, the system efficiently handles these materials. A key advantage of the TTR is its ability to pre-dry these fuels, enhancing their calorific value before they enter the pyroprocessing stage.
This flexibility ensures that cement plants can effectively transition to new fuel sources as they become available, maintaining operational efficiency and environmental compliance. The adaptability of our system helps clients respond to the evolving demands of the industry while continuing to prioritise sustainability.

What contributions do vertical roller mills and triangle mills make to energy and production efficiency?
Vertical roller mills (VRMs) serve two critical purposes in cement production. First, they efficiently grind materials, reducing large lumps of raw material into the fine powder necessary for processing. Second, they handle materials with high moisture content, drying them during the grinding process. This capability is particularly advantageous in regions with high rainfall or during the monsoon season, where raw materials often have elevated moisture levels. Compared to traditional ball mills, VRMs are significantly more energy-efficient, reducing power consumption while maintaining high productivity. This dual functionality—grinding and drying—makes VRMs an indispensable tool for improving both energy and production efficiency in cement plants.

Could you elaborate on your sustainability initiatives, particularly those contributing to the Net Zero mission?
Sustainability is central to our operations, and we address it through multiple avenues. One of our primary efforts is the use of alternative fuels to replace conventional fossil fuels. Additionally, we focus on minimising fuel consumption in our pyroprocessing systems through highly efficient designs for cyclones, calciners, and combustion systems.
Our vertical roller mills contribute by enhancing grinding and drying efficiency, reducing overall energy consumption. Moreover, our efforts to optimise the clinker-to-cement ratio include integrating supplementary materials like fly ash and slag, which reduces the reliance on raw clinker. These measures collectively help us align with the Net Zero mission by decreasing energy use, emissions, and natural resource consumption.

What makes Tahiyo Engineering’s designs and technologies unique compared to your competitors?
The primary differentiator is that Taiheiyo Engineering is part of Taiheiyo Cement, Japan’s largest cement company. This affiliation gives us a unique perspective, allowing us to develop technologies tailored to the specific needs and goals of cement producers. Our solutions are not only innovative but also practical, as they are tested extensively in our own plants before being offered to the market.
This approach ensures that every technology we provide is proven, reliable, and effective, giving customers confidence in its performance. Unlike traditional equipment manufacturers, we prioritise client needs, offering customised solutions instead of generic products.

What are your individual perspectives on the Net Zero mission and the innovations required to achieve it?
Achieving Net Zero is an inspiring challenge, particularly for foundational industries like cement, steel and power. As one of the largest contributors to carbon emissions, the cement industry is focused on reducing its environmental impact through various measures. These include improving the raw material-to-clinker ratio, using industrial by-products like fly ash and slag, and adopting alternative fuels to replace fossil fuels.
From our perspective, innovations like the Taiheiyo Thermal Reactor (TTR), which enhances the use of alternative fuels, and ongoing developments in carbon capture and clinker factor reduction technologies are essential. By rigorously testing these technologies in our plants before market deployment, we ensure their efficacy and contribute meaningfully to the industry’s decarbonisation efforts.

– Kanika Mathur

Concrete

Efficient Cooling Solution Boosts Gearbox Uptime

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Efficient Oil Cooling for Gearbox in the Cement Industry. How a High-Performance Plate Heat Exchanger Ensured Thermal Stability and Operational Continuity.

Contributed by: Narendra Joshi and Sourabh Mishra

Application: Gearbox Oil Cooling
Objective: To maintain optimal oil temperature in high-viscosity lubrication systems for gearboxes in cement plants, ensuring uninterrupted operations and minimizing production losses due
to overheating.
Challenge: A prominent cement manufacturing company’s conventional cooling systems were failing to maintain the oil temperature within the optimal range, jeopardizing equipment performance and leading to avoidable downtime.

Background with the Existing System
In heavy-duty industrial applications, particularly in the cement industry, gearboxes are critical components that must operate under high mechanical loads and harsh conditions. These gearboxes rely on lubrication systems where oil plays a dual role, lubrication and heat dissipation. A recurring challenge in such setups is managing the temperature of the gearbox oil. When oil heats beyond a critical limit, its viscosity drops, reducing its ability to form a protective film. This leads to increased friction between components, heat generation, and eventual damage to gearbox components — directly impacting plant uptime and production output.

Delivering Sustainable Heat Transfer Solution with HRS FUNKE High Efficiency Heat Exchanger
This system was selected for its:

  • Excellent thermal performance, ensuring rapid and efficient oil cooling even with high-viscosity fluids.
  • Leakage-proof operation, with no cross-contamination between cooling water and lubrication oil.
  • Robust design, capable of withstanding high operating pressures and variable flow conditions.

The plate exchanger was custom configured based on the oil’s properties, desired outlet temperature, and ambient heat load, ensuring that the oil remained within the specified viscosity range necessary for maintaining gearbox operation and lubrication integrity.

Performance Benefits Delivered

  • Oil temperature control and maintained consistently within target range
  • Viscosity stability and prevented breakdown of lubrication film
  • Equipment reliability and reduced risk of gearbox overheating or failure
  • Production continuity and eliminated unplanned stoppages
  • Long-Term savings and lower maintenance costs and extended oil life

Solution: To address the problem, HRS Process Systems Ltd recommended the installation of a Funke Plate Heat Exchanger a compact, high-efficiency thermal solution engineered specifically for industrial lubrication oil cooling.

Conclusion: The customer achieved precision oil temperature control, ensuring that the gearboxes operated at optimal conditions. This not only safeguarded the mechanical integrity of the gearbox but also directly contributed to higher plant uptime and improved production efficiency in heavy industries like cement manufacturing.

(Communication by the management of HRS Process Systems Ltd)

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Concrete

How Upgrades Can Deliver Energy Savings Across the Cement Process

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Jacob Brinch-Nielsen, Vice President of Professional Services, FLSmidth Cement, brings together recommendations from experts across the flow sheet to demonstrate the role of upgrades in optimising the cement manufacturing process.

Improving energy efficiency in material transport
Pneumatic conveying offers a cleaner and more contained alternative to mechanical conveying. However, pneumatic systems can also be energy-intensive, with inefficiencies arising from air leakage, pressure losses, and outdated equipment designs. Optimising these systems can significantly reduce energy consumption and operating costs.
“One major challenge is maintaining efficient air-to-material ratios, as excessive air use leads to unnecessary power consumption,” explains Emilio Vreca, Manager of PT Product Engineering “Leaks in piping and inefficient compressors further compound energy losses. To address these issues, upgrading to the latest pneumatic conveying solutions can yield substantial improvements.”
The latest pump design—the Fuller-Kinyon® (FK) ‘N’ Pump—provides power savings of up to 15 per cent thanks to an improved seal, while an extended barrel and screw design have improved volumetric efficiency by more than 15 per cent. Similarly, the latest generation Ful-Vane™ Air Compressor has been engineered for increased energy efficiency, with an improved inlet area for capturing larger air flows and compatibility with variable frequency drives.

Optimising energy efficiency in packing and dispatch
Even minor inefficiencies in bagging and palletising can lead to higher maintenance demands, increased material waste, and unnecessary energy use. Reducing these inefficiencies is yet another lever to improve overall plant performance and sustainability.
Upgrading rotary packers enhances weighing accuracy, reduces spout-to-spout variations, and lowers reject rates, improving both product consistency and energy efficiency. Similarly, replacing pneumatic drive systems in palletisers with electric alternatives eliminates compressed air dependency, leading to more precise bag handling and reduced energy demand. These targeted upgrades help streamline operations while minimising environmental impact.
A key development in dust control is the FILLPro™ Dust Reduction Kit for GIROMAT® EVO. “By refining material flow and fluidisation, FILLPro reduces dust emissions at the source, improving bagging efficiency and plant cleanliness,” explains Gabriele Rapizza, Proposal Engineer. “This reduces material loss, prevents blockages, and cuts down on maintenance, helping plants achieve a more stable and energy-efficient packing operation.”

How services contribute to increased energy efficiency
In the past, many viewed the role of the supplier as a “sell-and-move-on” model. Things have certainly changed. As cement producers face challenging markets, heightened competition, and increasingly ambitious decarbonisation targets there is little room to tolerate inefficiencies within the plant. The paradigm has shifted such that the value of expert services is as essential as the initial equipment supplied. Furthermore, as digital solutions progress at speed, a fluid, long-term partnership gives cement plants the best platform to take advantage of the latest tools.
Whether it’s an audit to identify why energy efficiency has decreased from one year to the next, or even an optimisation package preparing your plant for carbon capture solutions – we are believers in the principle that there is always more we can do to improve efficiency. For example, our Online Condition Monitoring Services (OCMS) provide continuous monitoring of critical equipment such as the kiln, mills, cooler and fans, aggregating data and utilising advanced algorithms to identify potential trouble spots. As the OEM and an experienced full solutions provider, we can support these services with expert advice, not only alerting you to a problem but also providing recommendations as to how to remedy it or attending site to support you in person.

Small upgrades, big impact
Energy efficiency is a critical factor, influencing both operational costs and sustainability goals. While large-scale innovations such as carbon capture will play an essential role in long-term decarbonisation (and steal the headlines), incremental mechanical upgrades offer an immediate pathway to lower energy consumption with minimal disruption.
By optimising key process areas — grinding, dosing, combustion, cooling, and material transport — you can achieve measurable energy savings while improving performance and flexibility. These solutions provide a strong return on investment and pave the way for a more sustainable cement industry.

Part 3 of 3. Read Part 1 in the May issue of Indian Cement Review and Par 2 in the June issue of the Indian Cement Review magazine.

(Communication by the management of the company)

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Concrete

Star Cement launches ‘Star Smart Building Solutions’

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Star Cement has launched ‘Star Smart Building Solutions,’ a new initiative aimed at promoting sustainable construction practices, as per a recent news report. This venture introduces a range of eco-friendly products, including tile adhesives, tile cleaners and grouts, designed to enhance durability and reduce environmental impact. The company plans to expand this portfolio with additional value-added products in the near future. By focusing on sustainable materials and innovative building solutions, Star Cement aims to contribute to environmentally responsible construction and meet the evolving needs of modern infrastructure development.

Image source:https://www.starcement.co.in/

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