Concrete
Engineering safer conveyors: Art meets science
Published
5 years agoon
By
admin
All new conveyor systems will inevitably succumb to the punishing bulk handling environment and begin the slow process of degradation. The system will eventually require more time and labor for maintenance, shorter spans between outages, longer periods of downtime, and an ever-increasing cost of operation. This period is also accompanied by an increased chance of injury or fatality as workers are progressively exposed to the equipment to perform cleaning, maintenance and to fabricate short-term fixes to long-term problems. A total system replacement is cost- prohibitive, but to remain compliant and/or meet ever-increasing production demands, upgrades and repairs are unavoidable.
When examining the safety of a system, improving efficiency and reducing risk can be achieved by utilizing a hierarchy of control methods for alleviating hazards. The consensus among safety professionals is that the most effective way to mitigate risks is to design the hazard out of the component or system. This usually requires a greater initial capital investment than short-term fixes, but yields more cost-effective and durable results.
Science: Hierarchy of control methods
Examining the US Occupational Safety and Health Administration (OSHA) accident database reveals the dangers of working around conveyors.[1] Studies have revealed that the highest prevalence of accidents is near locations where cleaning and maintenance activities most frequently take place: take-up pulley, tail pulley, and head pulley.
Designs should be forward-thinking, exceeding compliance standards and enhancing operators??ability to incorporate future upgrades cost-effectively and easily by taking a modular approach. Designing hazards out of the system means alleviating causes with the intent to bolster safety on a conveyor system, but the methods of protecting workers can vary greatly.
In many cases, it will be necessary to use more than one control method, by incorporating lower-ranked controls. However, these lower-ranking approaches are best considered as support measures, rather than solutions in and of themselves.
PPE includes respirators, safety goggles, blast shields, hard hats, hearing protectors, gloves, face shields, and footwear, providing a barrier between the wearer and the hazard. Downsides are that they can be worn improperly, may be uncomfortable to use through an entire shift, can be difficult to monitor and offer a false sense of security. But the bottom line is that they do not address the source of the problem.
Administrative controls (changes to the way people work) create a policy that articulates a commitment to safety, but written guidelines can be easily shelved and forgotten. These controls can be taken a step further by establishing ??ctive??procedures to minimise the risks. For example, supervisors can schedule shifts that limit exposure and require more training for personnel, but these positive steps still do not remove the exposure and causes of hazards.
Warning Signage is generally required by law, so this is less of a method than a compliance issue. It should be posted in plain sight, clearly understood and washed when dirty or replaced when faded. Like most lower-tier methods, signs do not remove the hazard and are easily ignored.
Installing systems such as engineering controls that allow remote monitoring and control of equipment??r guards such as gates and inspection doors that obstruct access??reatly reduce exposure, but again, do not remove the hazard.
Using the substitute method replaces something that produces a hazard with a piece of equipment or change in material that eliminates the hazard. For example, the manual clearing of a clogged hopper could be replaced by installing remotely triggered air cannons.
Examples of eliminate by design are longer, taller, and tightly sealed loading chutes to control dust and spillage or heavy-duty primary and secondary cleaners to minimize carryback. By using hazard identification and risk-assessment methods early in the design process, engineers can create the safest, most efficient system for space, budget, and application.
Economic analysis of prevention through design (PtD)
Another way of saying ??liminate by design??is PtD (Prevention through Design), the term used by The National Institute of Occupational Safety and Health (NIOSH). As a department of the U.S. Centers for Disease Control (CDC), the organisation spearheaded the PtD initiative.[3] In its report, the Institute points out that, while the underlying causes vary, studies of workplace accidents implicate ??ystem design??in 37 per cent of job-related fatalities.
Cost is most often the main inhibitor to PtD, which is why it?? best to implement safer designs in the planning and initial construction stages, rather than retrofitting the system later. The added engineering cost of PtD is often less than an additional 10 per cent of engineering but has enormous benefits in improved safety and increased productivity.
The cost of PtD initiatives after initial construction can be three to five times as much as when the improvement is incorporated in the design stage. The biggest cause of expensive retroactive improvements is cutting corners initially by seeking the lowest-bid contracts.
Low-bid process and lifecycle cost
Although the policy is generally not explicitly stated by companies, the low-bid process is usually an implied rule that is baked into a company?? culture. It encourages bidders to follow a belt conveyor design methodology that is based on getting the maximum load on the conveyor belt and the minimum compliance with regulations using the lowest price materials, components, and manufacturing processes available.
But when companies buy on price, the benefits are often short-lived, and costs increase over time, eventually resulting in losses. In contrast, when purchases are made based on lowest long-term cost (lifecycle cost), benefits usually continue to accrue and costs are lower, resulting in net savings over time.??sup>[4]
The Art: Design Hierarchy
Rather than meeting minimum compliance standards, the conveyor system should exceed all code, safety, and regulatory requirements using global best practices. By designing the system to minimize risk and the escape and accumulation of fugitive material, the workplace is made safer and the equipment is easier to maintain.
Life cycle costing should play into all component decisions. Buying on lifecycle cost and anticipating the future use of problem-solving components in the basic configuration of the conveyor provides improved safety and access, without increasing the structural steel requirements or significantly increasing the overall price. It also raises the possibility for easier system upgrades in the future.
Best practices: The ??a href=’https://indiancementreview.quintype.com/story/5985400b-6cad-4420-a931-43741b043db2’>Evolved Basic Conveyor??/strong>
Using the hierarchy of controls along with the design hierarchy, engineers will be able to construct an ??volved basic conveyor??that meets the needs of modern production and safety demands. Built competitively with a few modifications in critical areas, an evolved basic conveyor is a standard bulk material handling conveyor designed to allow easy retrofitting of new components that improve operation and safety, solving or preventing common maintenance problems.
Installing or providing maintenance-minded solutions in the loading zone can greatly improve safety and reduce man-hours and downtime. These components include slide-in/slide-out idlers, impact cradles and support cradles. On larger conveyors, maintenance aids such as overhead monorails or jib cranes assist in the movement and replacement of components. Also, designers should ensure adequate access to utilities??ypically electricity and/or compressed air??o facilitate maintenance and performance. Next-generation conveyor designs may even feature a specially-engineered idler capped with an independent power generator that uses the conveyor?? movement to generate power for a wide array of autonomous equipment.
Dust, spillage, and belt tracking are top concerns for many safety professionals. Field tests have shown that enlarged skirtboards and engineered settling zones promote dust settling, and reduce fugitive material. Curved loading and discharge chutes control the cargo transfer for centered placement and reduced turbulence. As the load is centered on the belt, guides ensure even travel through the takeup to promote consistent belt tracking.
Any transfer point is prone to buildup and clogging under the right conditions, be it ambient humidity, material wetness, volume or surface grade. Flow aids such as vibrators or air cannons on chutes can sustain the material movement, improve equipment life and reduced the safety hazards associated with manually clearing clogs.
Conclusion
Engineering safer conveyors is a long-term strategy. Although design absorbs less than 10 percent of the total budget of a project, additional upfront engineering and applying a life cycle-cost methodology to the selection and purchase of conveyor components proves beneficial.
By encouraging the use of the hierarchy of controls at the planning stage, along with the design hierarchy at the design stage, the system will likely meet the demands of modern production and safety regulations, with a longer operational life, fewer stoppages, and a lower cost of operation.
References
1. Conveyor Accident Database, OSHA, US Dept. of Labor. Washington, DC. 2018. https://www.osha.gov/pls/imis/AccidentSearch.search?acc_keyword=%22Conveyor%20Belt%22&keyword_list=on
2. ??oundations for Conveyor Safety?? Ch. 31, pgs. 404-440. Martin Engineering. Worzalla Publishing Company, Stevens Point, Wisconsin. 2016. https://www.martin-eng.com/content/product/690/safety-book
3. Howard, John, M.D. ??revention through Design: Plan for the National Initiative?? National Institute of Occupational Safety and Health (NIOSH), U.S. Centers for Disease Control (CDC), Department Of Health And Human Services. Washington, DC. 2010. https://www.cdc.gov/niosh/docs/2011-121/pdfs/2011-121.pdf
4. Swinderman, R. Todd. ??he Economics of Workplace Safety: Putting a price on material handling mishaps.??Coal Age. Vol. 123, No. 3, pg. 28-31. April, 2018. https://www.coalage.com/features/the-economics-of-workplace-safety/

Copyright: Martin Engineering
Safety improves as the type of hazard control moves higher up the hierarchy of methods.

Copyright: Martin Engineering
Incorporating effective hazard control techniques are easier and less costly in the early stages of a project. [2]

Copyright: Martin Engineering
Risk assessment applied to design helps create a safer conveyor system.

Copyright: Martin Engineering
The return on better design and quality is realized over the extended life and safety of the system.

Copyright: Martin Engineering
Rather than meeting minimum compliance standards, conveyor
systems should exceed code, safety and regulatory requirements.

Copyright: Martin Engineering
Components of an evolved basic conveyor facilitate operations, maintenance and safety.

Copyright: Martin Engineering
A properly configured conveyor minimizes emissions for improved safety and easier maintenance.
You may like
Concrete
Merlin Prime Spaces Acquires 13,185 Sq M Land Parcel In Pune
Rs 273 crore purchase broadens the developer’s Pune presence
Published
21 hours agoon
March 6, 2026By
admin
Merlin Prime Spaces (MPS) has acquired a 13,185 sq m land parcel in Pune for Rs 273 crore, marking a notable expansion of its footprint in the city.
The transaction value converts to Rs 2,730 mn or Rs 2.73 bn.
The parcel is located in a strategic area of Pune and the firm described the acquisition as aligned with its growth objectives.
The deal follows recent activity in the region and will be watched by investors and developers.
MPS said the acquisition will support its planned development pipeline and enable delivery of commercial and residential space to meet local demand.
The company expects the site to provide flexibility in product design and phased development to respond to market conditions.
The move reflects an emphasis on land ownership in key suburban markets.
The emphasis on land acquisition reflects a strategy to secure inventory ahead of demand cycles.
The purchase follows a period of sustained investor interest in Pune real estate, driven by expanding office ecosystems and residential demand from professionals.
MPS will integrate the new holding into its existing portfolio and plans to engage with local authorities and stakeholders to progress approvals and infrastructure readiness.
No financial partners were disclosed in the announcement.
The firm indicated that timelines will depend on approvals and prevailing market conditions.
Analysts note that strategic land acquisitions at scale can help developers manage costs and timelines while preserving optionality for future projects.
MPS will now hold an enlarged land bank in the region as it pursues growth, and the acquisition underlines continued corporate appetite for measured expansion in second tier cities.
The company intends to move forward with detailed planning in the coming months.
Stakeholders will assess how the site is positioned relative to existing infrastructure and connectivity.
Concrete
Adani Cement and Naredco Partner to Promote Sustainable Construction
Collaboration to focus on skills, technology and greener practices
Published
21 hours agoon
March 6, 2026By
admin
Adani Cement has entered a strategic partnership with the National Real Estate Development Council (Naredco) to support India’s construction needs with a focus on sustainability, workforce capability and modern building technologies. The collaboration brings together Adani Cement’s building materials portfolio, research and development strengths and technical expertise with Naredco’s nationwide network of more than 15,000 member organisations. The agreement aims to address evolving demand across housing, commercial and infrastructure sectors.
Under the partnership, the organisations will roll out skill development and certification programmes for masons, contractors and site supervisors, with training to emphasise contemporary construction techniques, safety practices and quality standards. The programmes are intended to improve project execution and on-site efficiency and to raise labour productivity through standardised competencies. Emphasis will be placed on practical training and certification pathways that can be scaled across regions.
The alliance will function as a platform for knowledge sharing and technology exchange, facilitating access to advanced concrete solutions, innovative construction practices and modern materials. The effort is intended to enhance structural durability, execution quality and environmental responsibility across developments while promoting adoption of low-carbon technologies and green cement alternatives. Companies expect these measures to contribute to longer term resilience of built assets.
Senior executives conveyed that the partnership reflects a shared commitment to strengthening quality and sustainability in construction and that closer engagement with developers will help integrate advanced materials and technical support throughout the project lifecycle. Leadership noted the need for responsible construction practices as urbanisation accelerates and indicated that the association should encourage wider adoption of green building norms and collaboration within the real estate and construction ecosystem.
The organisations said they will also explore integrated building solutions, including ready-mix concrete offerings, while supporting initiatives aligned with affordable and inclusive housing. The partnership will progress through engagements, conferences and joint training programmes targeting rapidly urbanising cities and growth centres where demand for efficient and environmentally responsible construction grows. Naredco, established under the aegis of the Ministry of Housing and Urban Affairs, will leverage its policy and advocacy role to support implementation.
Operational excellence in cement is no longer about producing more—it is about producing smarter, cleaner and more reliably, where cost per tonne meets carbon per tonne.
Operational excellence in cement has moved far beyond the old pursuit of ‘more tonne’. The new benchmark is smarter, cleaner, more reliable production—delivered with discipline across process, people and data. In an industry where energy can account for nearly 30 per cent of manufacturing cost, even marginal gains translate into meaningful value. As Dr SB Hegde, Professor, Jain College of Engineering & Technology, Hubli and Visiting Professor, Pennsylvania State University, USA, puts it, “Operational excellence… is no longer about producing more. It is about producing smarter, cleaner, more reliably, and more sustainably.” The shift is structural: carbon per tonne will increasingly matter as much as cost per tonne, and competitiveness will be defined by the ability to stabilise operations while steadily lowering emissions.
From control rooms to command centres
The modern cement plant is no longer a handful of loops watched by a few operators. Control rooms have evolved from a few hundred signals to thousands—today, up to 25,000 signals can compete for attention. Dr Rizwan Sabjan, Head – Global Sales and Proposals, Process Control and Optimization, Fuller Technologies, frames the core problem plainly: plants have added WHRS circuits, alternative fuels, higher line capacities and tighter quality expectations, but human attention remains finite. “It is very impossible for an operator to operate the plant with so many things being added,” he says. “We need somebody who can operate 24×7… without any tiredness, without any distraction… The software can do that for us better.”
This is where advanced process control shifts from ‘automation spend’ to a financial lever. Dr Hegde underlines the logic: “Automation is not a technology expense. It is a financial strategy.” In large kilns, a one per cent improvement is not incremental—it is compounding.
Stability is the new productivity
At the heart of operational excellence lies stability. Not because stability is comfortable, but because it is profitable—and increasingly, low-carbon. When setpoints drift and operators chase variability, costs hide in refractory damage, thermal shocks, stop-start losses and quality swings. Dr Sabjan argues that algorithmic control can absorb process disturbances faster than any operator, acting as ‘a co-pilot or an autopilot’, making changes ‘as quick as possible’ rather than waiting for manual intervention. The result is not just fuel saving—it is steadier operation that extends refractory life and reduces avoidable downtime.
The pay-off can be seen through the lens of variability: manual operation often amplifies swings, while closed-loop optimisation tightens control. As Dr Sabjan notes, “It’s not only about savings… there are many indirect benefits, like increasing the refractory life, because we are avoiding the thermal shocks.”
Quality control
If stability is the base, quality is the multiplier. A high-capacity plant can dispatch enormous volumes daily, and quality cannot be a periodic check—it must be continuous. Yet, as Dr Sabjan points out, the biggest error is not in analysis equipment but upstream: “80 per cent of the error is happening at the sampling level.” If sampling is inconsistent, even the best XRF and XRD become expensive spectators.
Automation closes the loop by standardising sample collection, transport, preparation, analysis and corrective action. “We do invest a lot of money on analytical equipment like XRD and XRF, but if it is not put on the closed loop then there’s no use of it,” he says, because results become person-dependent and slow.
Raju Ramachandran, Chief Manufacturing Officer (East), Nuvoco Vistas Corp, reinforces the operational impact from the plant floor: “There’s a stark difference in what a RoboLab does… ensuring that the consistent quality is there… starts right from the sample collection.” For him, automation is not about removing people; it is about making outcomes repeatable.
Human-centric automation
One of the biggest barriers to performance is not hardware—it is fear. Dr Sabjan describes a persistent concern that digital tools exist to replace operators. “That’s not the way,” he says. “The technology is here to help operator… not to replace them… but to complement them.” The plants that realise this early tend to sustain performance because adoption becomes collaborative rather than forced.
Dr Hegde adds an important caveat: tools can mislead without competence. “If you don’t have the knowledge about the data… this will mislead you… it is like… using ChatGPT… it may tell the garbage.” His point is not anti-technology; it is pro-capability. Operational excellence now requires multidisciplinary teams—process, chemistry, physics, automation and reliability—working as one.
GS Daga, Managing Director, SecMec Consultants, takes the argument further, warning that the technology curve can outpace human readiness: “Our technology movement AI will move fast, and our people will be lagging behind.” For him, the industry’s most urgent intervention is systematic skilling—paired with the environment to apply those skills. Without that, even high-end systems remain underutilised.
Digital energy management
Digital optimisation is no longer confined to pilots; its impact is increasingly quantifiable. Raghu Vokuda, Chief Digital Officer, JSW Cement, describes the outcomes in practical terms: reductions in specific power consumption ‘close to 3 per cent to 7 per cent’, improvements in process stability ‘10 per cent to 20 per cent’, and thermal energy reductions ‘2–5 per cent’. He also highlights value beyond the process line—demand optimisation through forecasting models can reduce peak charges, and optimisation of WHRS can deliver ‘1 per cent to 3 per cent’ efficiency gains.
What matters is the operating approach. Rather than patchwork point solutions, he advocates blueprinting a model digital plant across pillars—maintenance, quality, energy, process, people, safety and sustainability—and then scaling. The difference is governance: defined ownership of data, harmonised OT–IT integration, and dashboards designed for each decision layer—from shopfloor to plant head to network leadership.
Predictive maintenance
Reliability has become a boardroom priority because the cost of failure is blunt and immediate. Dr Hegde captures it crisply: “One day of kiln stoppage can cost several crores.” Predictive maintenance and condition monitoring change reliability from reaction to anticipation—provided plants invest in the right sensors and a holistic architecture.
Dr Sabjan stresses the need for ‘extra investment’ where existing instrumentation is insufficient—kiln shell monitoring, refractory monitoring and other critical measurements. The goal is early warning: “How to have those pre-warnings… where the failures are going to come… and then ensure that the plant availability is high, the downtime is low.”
Ramachandran adds that IoT sensors are increasingly enabling early intervention—temperature rise in bearings, vibration patterns, motor and gearbox signals—moving from prediction to prescription. The operational advantage is not only fewer failures, but planned shutdowns: “Once the shutdown is planned in advance… you have lesser… unpredictable downtimes… and overall… you gain on the productivity.”
Alternative fuels and raw materials
As decarbonisation tightens, AFR becomes central—but scaling it is not simply a procurement decision. Vimal Kumar Jain, Technical Director, Heidelberg Cement, frames AFR as a structured programme built on three foundations: strong pre-processing infrastructure, consistent AFR quality, and a stable pyro process. “Only with the fundamentals in place can AFR be scaled safely—without compromising clinker quality or production stability.”
He also flags a ground reality: India’s AFR streams are often seasonal and variable. “In one season to another season, there is major change… high variation in the quality,” he says, making preprocessing capacity and quality discipline mandatory.
Ramachandran argues the sector also needs ecosystem support: a framework for AFR preprocessing ‘hand-in-hand’ between government and private players, so fuels arrive in forms that can be used efficiently and consistently.
Design and execution discipline
Operational excellence is increasingly determined upstream—by the choices made in concept, layout, technology selection, operability and maintainability. Jain puts it unambiguously: “Long term performance is largely decided before the plant is commissioned.” A disciplined design avoids bottlenecks that are expensive to fix later; disciplined execution ensures safe, smooth start-up with fewer issues.
He highlights an often-missed factor: continuity between project and operations teams. “When knowledge transfer is strong and ownership carries beyond commissioning, the plant stabilises much faster… and lifecycle costs reduce significantly.”
What will define the next decade
Across the value chain, the future benchmark is clear: carbon intensity. “Carbon per ton will matter as much as cost per ton,” says Dr Hegde. Vokuda echoes it: the industry will shift from optimising cost per tonne to carbon per ton.
The pathway, however, is practical rather than idealistic—low-clinker and blended cements, higher thermal substitution, renewable power integration, WHRS scaling and tighter energy efficiency. Jain argues for policy realism: if blended cement can meet quality, why it shall not be allowed more widely, particularly in government projects, and why supplementary materials cannot be used more ambitiously where performance is proven.
At the same time, the sector must prepare for CCUS without waiting for it. Jain calls for CCUS readiness—designing plants so capture can be added later without disruptive retrofits—while acknowledging that large-scale rollout may take time as costs remain high.
Ultimately, operational excellence will belong to plants that integrate—not isolate—the levers: process stability, quality automation, structured AFR, predictive reliability, disciplined execution, secure digitalisation and continuous learning. As Dr Sabjan notes, success will not come from one department owning the change: “Everybody has to own it… then only… the results could be wonderful.”
And as Daga reminds the industry, the future will reward those who keep their feet on the ground while adopting the new: “I don’t buy technology for the sake of technology. It has to make a commercial sense.” In the next decade, that commercial sense will be written in two numbers—cost per tonne and carbon per tonne—delivered through stable, skilled and digitally disciplined operations.
Merlin Prime Spaces Acquires 13,185 Sq M Land Parcel In Pune
Adani Cement and Naredco Partner to Promote Sustainable Construction
Operational Excellence Redefined!
World Cement Association Annual Conference 2026 in Bangkok
Assam Chief Minister Opens Star Cement Plant In Cachar
Merlin Prime Spaces Acquires 13,185 Sq M Land Parcel In Pune
Adani Cement and Naredco Partner to Promote Sustainable Construction
Operational Excellence Redefined!
World Cement Association Annual Conference 2026 in Bangkok
Assam Chief Minister Opens Star Cement Plant In Cachar
Trending News
-
Economy & Market4 weeks agoFORNNAX Appoints Dieter Jerschl as Sales Partner for Central Europe
-
Concrete2 weeks agoRefractory demands in our kiln have changed
-
Concrete2 weeks agoDigital supply chain visibility is critical
-
Concrete2 weeks agoOur strategy is to establish reliable local partnerships


