Concrete
Right design of the transportation system is critical
Published
2 years agoon
By
adminVinod Agrawal, Executive Vice President – Logistics, Wonder Cement, discusses the varied factors affecting the material handling equipment and their maintenance, as well as the role of automation and technology in the material handling process.
Tell us about the key material handling equipment used in a cement plant. At what stage of manufacturing are these equipment most functional?
Cement manufacturing is a process driven industry where various types of ore, raw materials, semifinished and finished products are handled in various forms at various stages. Efficiency and productivity of the material handling equipment is vital to produce the best quality of cement at the most economic cost. Modern cement plants use following material handling equipment:
From limestone mines to crusher: Hydraulic high-capacity dumpers/tippers, poclains, belt conveyors/pipe conveyors. Some of these belt conveyors are even spread cross-country panning at a length of 17 km, carrying limestone from mines in India for cement plants located in Bangladesh. The longest conveyor belt in the world measures to 98 km and is operational to transport at the ore in Western Sahara, Africa. Since belt conveyors are a very efficient mode of transportation, there are various projects ongoing for manufacturing even longer belt conveyors not only in cement industries but also in other manufacturing sectors.
From crusher to raw mill: Belt conveyors, stacker and reclaimers are used to maintain uniformity of quality. In the mines from pit to pit based on the horizontal and vertical location there is some variation in quality. Stacker and reclaimer are a two-step material handling, storage as well as homogenisation process equipment to maintain uniformity of the raw material of limestone, ores like gypsum, raw materials and fuels like coal, petcoke etc. Here, the wagon tipplers and truck tipplers are used to receive and unload raw materials “Right design of the transportation system is critical.”Vinod Agrawal, Executive Vice President – Logistics, Wonder Cement faster throughout the chain of operation.
From raw mill output to clinkerisation: Heat resistant belt conveyors, bucket elevators (belt and chain type), air lifters/air slides, pneumatic conveying system, screw conveyors and overhead cranes are used to carry materials in this stage of cement manufacturing.
From post clinkerisation to grinding: Belt conveyors, bucket elevators, air slides, screw conveyors are used to carry clinker to grinding units.
From cement packaging to dispatch: Automatic ROTO packers, wagon loading machines for covered wagons for 50kg cement bags, truck loading machines, bulk cement conveying and loading system for bulkers/tank Container wagons, clinker loading system for open wagons.
Finished goods (cement) – end transportation to customers: Various type of railway wagons like covered wagons (BCN/BCNA), Open Type Wagons (BOXN), bulk cement transportation wagons like (BCCW, BTAP), various types of trucks with a capacity of 10 MT to 45 MT, bulkers for transportation of bulk cement by road, container wagons by road as well as rail.For material handling, storage and onwards, the transportation at the depot is done by using conveyors, cranes or manually
What is the maintenance procedure of the material handling equipment at your organisation?
In our organisation, we maintain the highest level of reliability of all equipment by adhering to Preventive Maintenance (PM) Frequency as given by the suppliers (Original Equipment Manufacturers) recommendation. The preventive maintenance is a very structured and well-designed maintenance system, where each part of the equipment has a defined frequency of inspection, repairing and replacement of the parts. Since cement manufacturing is a continuous process industry, reliability on each and every equipment is equally important as negligence or deviation in any material handling equipment even if it may be of smallest value. Negligence can cause a complete stoppage of the entire production cycle. We are following a 100 per cent adherence on the preventive measure schedule given by OEM. Apart from this we are continuously innovating better systems for superior operation in each stage of material handling.
Tell us about the role of automation and technology in the material handling process?
Today’s digitisation and technological upgradation has changed the shape of material handling equipment.
There are inbuilt quality checks installed in the equipment that conduct an hourly check at each stage of material handling where the equipment functions. Every equipment in our units are equipped with automatic sensors, safety interlock switches for material high level, low level, cross belt analyser, belt conveyors material conveying rate Ton Per Hour (TPH) on real time basis, speed variable drives to increase or decrease the speed on automatic basis to cite some examples. Our quality testing laboratory, we use world class robotic technology to handle the samples of raw materials, semi-finished and finished products for quality assurance.
Every equipment at our packaging plants is equipped to monitor the exact weight of each bag of cement. An automatic bag counter is installed at various stages of the packing and loading operation unit, which helps reduce manual work load and ensure higher rate of accuracy in the system
What are the key differences in handling raw material versus handling end products at the cement plant?
Raw materials are normally handled in bulk form in larger structures like stone shapes, granules, fine powder and mainly handled by equipment like belt conveyors, belt bucket elevators, air slides, air lifters, pneumatic conveying system. For the finished goods, till the packing operation, almost similar equipment is used to carry the load through different units.
However, after the packaging is done, there are customised material handling equipment like wagon loading machine, truck loading machine etc. The belt conveyor is most commonly used equipment and is functional throughout the process till loading is done inside the wagons and trucks. The design, capacity and size of the belt conveyors changes as per each stage of operation.
Tell us about the various conveyors used in the manufacturing unit?
There are various types of conveyors like, belt conveyor, which is most commonly used. There are other types of conveyors used for transportation of material like pipe type conveyors, heat resistant belt conveyors, bucket elevators, screw conveyors etc., through different processes of the cement manufacturing process.
What role do gates play in the transportation of material in and out of the plant?
Gates or valves are an integral part of the material handling equipment. These ensure controlled flow of materials and avoid any overflow, jamming or bottlenecks in the process of transfer of materials. They also are of help during maintenance work as they can stop material from flowing while the maintenance job is being completed.
How does the manufacturing unit ensure efficiency in the material transportation process?
Efficiency of the material transportation process can be ensured by adhering to the best operation practices and maintenance standards enlisted according to individual system guidelines. This not only ensures efficiency; it increases the machinery reliability and impacts productivity of the unit as a whole.
How can material handling or transportation impact the profitability of the organisation?
Selection of the right design of transportation system is critical for long term sustainability and profitability of any organisation. For example, if we do not install belt conveyors for ore transportation from mines to crushers and instead use road transportation, then the operating cost of the function will be almost five times higher than the use of conveyors.
Similarly, installation of rail handling systems or rail siding is key for long term viability and ease of operation compared to road transportation. Also, as a responsible corporate each organisation has the responsibility of conserving and protecting the environment, which is only possible with right designing, installation as well as operation of the material handling equipment.
What are the technological advancements required to enhance the productivity of material handling equipment?
There is a continuous cycle of innovation in the technology provided by prominent suppliers of material handling equipment. They are offering advancement in terms of automation and digitisation of the equipment, they are making them more environment friendly, safer for operation, providing a higher output while consuming less operating cost and giving higher number of runs before a scheduled maintenance is needed as per industry standards.
All this has been achieved with technological advancements and the same can be further improved and enhanced for higher productivity levels.
How do you foresee the future of material transportation at your manufacturing unit?
Earlier, most of the key material handling equipment for cement plants were imported. However, with the industrial development in India, we are gradually seeing a reduction of imported equipment and a lot of industries being set up locally for this sector that can provide the same technology of equipment at a much lower price while maintaining international standards. We foresee many more such industries being set up in India, where equipment delivery time will be reduced significantly and the cost will be competitive in the market. The lead time will be significantly reduced with this move as suppliers will be available across the country.
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Concrete
Indian Cement Industry Sees Further Consolidation
Cement industry to face consolidation soon.
Published
7 hours agoon
September 13, 2024By
adminIndia’s cement sector is set for further consolidation in the near-to-medium term, according to a recent report. With increasing competition, rising input costs, and the need for economies of scale, companies are expected to explore mergers and acquisitions (M&A) to strengthen their market positions. As the industry faces various challenges, including high energy costs and fluctuating demand, consolidation is viewed as a strategic move to drive growth and sustainability.
Key Points:
Market Consolidation: The Indian cement industry has already witnessed significant consolidation over the past few years, with several large firms acquiring smaller players to enhance their market share. The trend is expected to continue, driven by the need to optimize operations, cut costs, and gain better pricing power. Consolidation helps companies to expand their geographic reach and strengthen their portfolios.
Rising Costs and Challenges: One of the primary drivers of consolidation is the rising cost of inputs, particularly energy and raw materials. With costs of coal and petroleum coke (key energy sources for cement production) soaring, companies are looking for ways to maintain profitability. Smaller and medium-sized players, in particular, find it challenging to cope with these rising costs, making them more likely targets for acquisition by larger companies.
Economies of Scale: Larger cement companies benefit from economies of scale, which help them absorb the impact of rising input costs more effectively. Consolidation allows firms to streamline production processes, reduce operational inefficiencies, and invest in advanced technologies that improve productivity. These efficiencies become critical in maintaining competitiveness in an increasingly challenging environment.
M&A Activity: The report highlights the potential for more mergers and acquisitions in the cement sector, particularly among mid-sized and regional players. The Indian cement market, which is highly fragmented, presents numerous opportunities for larger companies to acquire smaller firms and gain a foothold in new markets. M&A activity is expected to accelerate as firms seek growth through strategic alliances and acquisitions.
Regional Focus: Consolidation efforts are likely to be regionally focused, with companies looking to expand their presence in specific geographic areas where demand for cement is strong. Infrastructure development, government projects, and urbanization are driving demand in various parts of the country, making regional expansions an attractive proposition for firms looking to grow.
Impact on Competition: While consolidation may lead to a more concentrated market, it could also intensify competition among the remaining players. Larger firms with more resources and market reach could dominate pricing strategies and influence market dynamics. Smaller firms may either merge or struggle to compete, leading to a reshaping of the competitive landscape.
Demand Outlook: The near-term outlook for the cement industry remains uncertain, with demand being influenced by factors such as construction activity, infrastructure projects, and government initiatives. The report notes that while urban demand is expected to remain stable, rural demand continues to face challenges due to slow construction activities in those areas. However, the long-term outlook remains positive, driven by ongoing infrastructure developments and real estate projects.
Sustainability Focus: Companies are also focusing on sustainability and environmental concerns. Consolidation can provide larger companies with the resources to invest in green technologies and reduce their carbon footprint. This focus on sustainability is becoming increasingly important, with both government regulations and market preferences shifting toward greener production practices.
Conclusion:
The Indian cement industry is poised for further consolidation in the coming years, driven by rising costs, competitive pressures, and the need for economies of scale. M&A activity is likely to accelerate, with larger firms targeting smaller and regional players to strengthen their market presence. While consolidation offers opportunities for growth and efficiency, it could also reshape the competitive landscape and influence pricing dynamics in the sector.
Concrete
Cement Companies May Roll Back Hike
Cement firms reconsider September price increase.
Published
7 hours agoon
September 13, 2024By
adminCement companies in India might be forced to reverse the price hikes implemented in September due to weakened demand and pressure from competitive market conditions, according to a report by Nuvama Institutional Equities. The recent price increase, which was expected to improve margins, may not hold as demand falls short of expectations.
Key Points:
Price Hike in September: Cement firms across India increased prices in September, aiming to improve their margins amidst rising input costs. This was seen as a strategic move to stabilize earnings as they were grappling with inflationary pressures on raw materials like coal and pet coke.
Weak Demand and Pressure: However, demand has not surged as expected. In some regions, particularly rural areas, construction activity remains low, which has contributed to the tepid demand for cement. The combination of high prices and low demand may make it difficult for companies to maintain the elevated price levels.
Competitive Market Forces: Cement manufacturers are also under pressure from competitors. Smaller players may keep prices lower to attract buyers, forcing larger companies to consider rolling back the September hikes. The competitive dynamics in regions like South India, where smaller firms are prevalent, are likely to impact larger companies’ pricing strategies.
Nuvama Report Insights: Nuvama Institutional Equities has highlighted that the September price hikes may not be sustainable given current market conditions. According to the report, the demand-supply imbalance and weak construction activities across many states could push cement companies to reconsider their pricing strategies.
Impact on Margins: If companies are compelled to roll back the price hikes, it could hurt their profit margins in the near term. Cement firms had hoped to recover some of their input costs through the price increases, but the competitive landscape and slow demand recovery could negate these gains.
Regional Variations: Price rollback might not be uniform across the country. In regions where infrastructure development is picking up pace, cement prices may hold. Urban areas with ongoing real estate projects and government infrastructure initiatives could see a sustained demand, making price hikes more viable.
Future Outlook: The outlook for the cement sector will largely depend on the pace of recovery in construction activity, particularly in the housing and infrastructure sectors. Any significant recovery in rural demand, which is currently subdued, could also influence whether the price hikes will remain or be rolled back.
Strategic Adjustments: Cement firms may need to adopt a cautious approach in the near term, balancing between maintaining market share and protecting margins. Price adjustments in response to market conditions could become more frequent as companies try to adapt to the fluctuating demand.
Conclusion:
The September price hikes by cement companies may face reversal due to weak demand, competitive pressures, and market dynamics. Nuvama’s report signals that while the increase was aimed at margin recovery, it may not be sustainable, particularly in regions with low demand. The future of cement pricing will depend on construction sector recovery and regional market conditions.
Concrete
Bridge Collapse Spurs Focus on Stainless Steel
Climate change prompts stainless steel push.
Published
7 hours agoon
September 13, 2024By
adminThe Ministry of Road Transport and Highways (MoRTH) is turning its attention to the use of stainless steel in bridge construction to counteract corrosion, an increasing issue linked to climate change. With recent bridge collapses highlighting the vulnerability of existing infrastructure to corrosion and extreme weather events, the ministry is promoting the adoption of durable materials like stainless steel to ensure the longevity and safety of India’s critical transport infrastructure.
Key Points:
Bridge Collapse and Climate Change: Recent incidents of bridge collapses across the country have raised alarm over the durability of current construction materials, with corrosion cited as a leading cause. Climate change, leading to harsher weather patterns and increased moisture levels, has accelerated the deterioration of key infrastructure. This has prompted MoRTH to consider long-term solutions to combat these challenges.
Corrosion: A Growing Concern: Corrosion of structural materials has become a serious issue, particularly in coastal and high-moisture regions. The Ministry has identified the need for a more resilient approach, emphasizing the use of stainless steel, known for its resistance to corrosion. This shift is seen as crucial in ensuring the longevity of India’s bridges and reducing maintenance costs over time.
Stainless Steel for Bridge Construction: Stainless steel, while more expensive initially, offers long-term savings due to its durability and resistance to environmental factors like moisture and salt. The Ministry is advocating for the material’s use in future bridge projects, particularly in areas prone to corrosion. Stainless steel is seen as a solution that can withstand the pressures of both natural elements and increasing traffic loads.
Government’s Proactive Steps: The government, through MoRTH, has started consulting with experts in the field of metallurgy and civil engineering to explore the expanded use of stainless steel. They are considering updates to construction standards and specifications to incorporate this material in new and rehabilitated infrastructure projects.
Economic Considerations: Although the initial investment in stainless steel may be higher than conventional materials, the reduced need for repairs and replacements makes it a cost-effective option in the long run. This approach also aligns with the government’s push for sustainable infrastructure that can withstand the test of time and climate change effects.
Future of Indian Infrastructure: With the push for stronger, more durable infrastructure, the Ministry’s move to adopt stainless steel for bridge construction marks a shift towards building climate-resilient structures. The use of this material is expected to not only enhance the safety and longevity of bridges but also reduce the financial burden on the government for constant repairs.
Industry Perspective: The stainless steel industry sees this shift as an opportunity to expand its market, particularly in the infrastructure sector. Stakeholders are engaging with the government to demonstrate the benefits of stainless steel, advocating for its increased use not just in bridges but across various infrastructure projects.
Conclusion: In response to the growing threat of climate change and its impact on infrastructure, the Ministry of Road Transport and Highways is prioritizing the use of stainless steel in bridge construction to combat corrosion and ensure the long-term durability of critical transport structures.