coal mill pfister inspection

pfister

pfister

PFISTER has established its name through a vast number of technical innovations for many applications and lines of business. PFISTER is an international leader in rotor weighfeeder technology for precise dosing of various materials.

One of the many advantages of this technology: The systems can be applied multifariously in different lines of business and for various purposes. In cement manufacturing e.g. PFISTER technologies are useful in all stages of production: from the raw mill, the kiln plant to the finish mill and cement preloading.

The PFISTER product range consists of classical linear dosing systems consisting of belt weighfeeders as well as the famous rotor weighfeeders and measuring scales. The performance range of these technologically advanced systems spans from dosing of fine products such as cement, coal dust, alternative fuels, raw meal or fly ashes to dosing of coarse materials such as clinker, raw coal or additives.

Especially in the field of dosing alternative fuels such as fluff, plastic, RDF, animal meal, tetra pack, bio masses etc., the rotor weighfeeder finds a broad field of employment as a multi-fuel system. Whether the materials to be dosed are pulverised, flaky or fibrous: PFISTER dosing systems are adjusted individually to the needs of the customer and each individual application.

In the pro-active rotor weighfeeder, the material mass is measured before it leaves the rotor weighfeeder. That means that the speed of the rotor is adjusted before the material is discharged into the system. The result is extremely high short and long-term accuracy.

Even long after the start-up of a PFISTERsolution, you can rely on our experienced service technicians for first-class service. A 24-hour hotline and online trouble-shooting provide worldwide support.

Constant efforts in R&D are key to our success In order to provide high-end dosing solutions to our customers now and in the future, PFISTER allocates substantial resources to research and development.For customers, applying PFISTERsystems means an investment for the future: The systems enable optimal production and add to our customers competitive advantage.All relevant PFISTERproducts and systems are certified to ATEX, which provides the technical requirements to be applied to equipment intended for use in potentially explosive environments.

Ludwig Pfister Wag-Fabrik (Ludwig Pfister Weighing Company) was founded in 1894 by blacksmith Ludwig Pfister. The companys first products were scales used for a number of different industrial and agricultural applications.

To the present day, PFISTER are specialists in dosing technology and runs offices worldwide. PFISTERis still headquartered in Germany, including departments for research, development, engineering, assembly, sales, service and management.

FLSmidth provides sustainable productivity to the global mining and cement industries. We deliver market-leading engineering, equipment and service solutions that enable our customers to improve performance, drive down costs and reduce environmental impact. Our operations span the globe and we are close to 10,200 employees, present in more than 60 countries. In 2020, FLSmidth generated revenue of DKK 16.4 billion. MissionZero is our sustainability ambition towards zero emissions in mining and cement by 2030.

pfister scf | coal feeding from flsmidth

pfister scf | coal feeding from flsmidth

Unreliable coal dosing leads to an unstable process. For maximum fuel efficiency and low emissions levels, you need a precise and consistent coal feed. The PFISTER SCF delivers. Thanks to the integrated dosing electronics, this smart coal feeder provides highly accurate and reliable gravimetric feeding of pulverized fuels to the burning process, including coal dust, lignite dust and petcoke. It has applications in the asphalt production industry, as well as heat and steam generation, where precise dosing of pulverized fuels is essential.

Based on the industry-proven PFISTER gravimetric rotor weighfeeder technology, the smart coal feeder is especially designed for dosing pulverized fuels in industrial environments. The sturdy design and integration of material extraction, weighing, dosing and material transfer into a pneumatic conveying line make this a compact system that is easy to integrate into existing facilities. Pulverized fuels are extracted directly from storage and fed pneumatically to the burner to support an optimal burning process.

Traditional feed systems control dosing volumetrically. Their accuracy depends on the coal itself being homogenous, when the reality is vastly different. Your coal feed cant be depended on to have the same density, the same calorific value or even the same lump size.

PFISTER rotor weighfeeders are gravimetric, meaning that the coal is weighed as it is dosed, so variations in size and density dont have the same impact on dosing accuracy. The precision you can achieve with a PFISTER rotor weighfeeder can have a huge impact on the economical and ecological operation of your plant. Constant, reliable coal feeding enables consistent, complete combustion with low emission levels.

FLSmidth provides sustainable productivity to the global mining and cement industries. We deliver market-leading engineering, equipment and service solutions that enable our customers to improve performance, drive down costs and reduce environmental impact. Our operations span the globe and we are close to 10,200 employees, present in more than 60 countries. In 2020, FLSmidth generated revenue of DKK 16.4 billion. MissionZero is our sustainability ambition towards zero emissions in mining and cement by 2030.

dosing of raw coal with rotor weighfeeder pfister trw-k | flsmidth

dosing of raw coal with rotor weighfeeder pfister trw-k | flsmidth

In 2009 Holcim Spain started a project to improve thepet-coke grinding performance in order to obtain safe andreliable coal mill feeding and to improve the coal mill grindingperformance. The start-up of this installation took placein 2010. With rotor weighfeeder Pfister TRW-K FLSmidth

The project included the replacement of the old raw coalfeeding equipment to the mill, which consisted of an apronfeeder, for the new design of rotor weighfeeder PfisterTRW-K.Rotor weighfeeder Pfister TRW-K installed in Carbonerasis the first reference installation of raw coal and pet cokemill feeding in the cement industry. The know-how of thisspecific technology was transferred from the power industrywhere rotor weighfeeder systems Pfister TRW-K have beensuccessfully in operation since 2003.

The installation supplied by FLSmidth Pfister GmbH consistsof a vibrating hopper (1m), a shut-off gate and a rotorweighfeeders Pfister TRW-K (4.18/5).The installation is a raw coal system to feed the coal mill.It consist of a 70 m3 hopper where the raw coal is stored.The vibrating hopper ensures the constant flow of thematerial. Installed below there is a dosing system (rotorweighfeeder Pfister TRW-K) and a drag chain conveyorbehind the airlock at the mill inlet. The chain conveyor transportsthe material either to the mill inlet or to another feedpoint for truck transport. The performance of rotor weighfeederPfister TRW-K is laid out to use up to 40 t/h of rawcoal with a range of 10 - 100% nominal and a precision of+/- 1%. Due to ATEX requirements, the design of theinstallation is pressure- shock resistant. The vibration hooper,shut off gate and Pfister weighfeeder are pressure shockresistant up to 3,5 bar.

The outstanding compact design of the gravimetric rotorweighfeeder Pfister TRW-K permits a minimum installationin terms of height. It also results in less maintenancework and a longer life of operation owing to the followingfeatures:

Pfister rotor weighfeeder TRW-K is a very reliable equipment,robust and free of spillages. Due to the exact and stablecoal and pet-coke dosing for mill feeding the mill grindingperformance is increased and mill vibrations decreased.

In order to obtain safe and reliable coal mill feeding, thestability and precision of raw coal dosing to the mill are keyelements. With its rotor weighfeeder Pfister TRW-Kconcept, FLSmidthPfister offers a future-oriented technologywith more than 50 units running successfully in operationsince 2003.

FLSmidth Pfister GmbH does not only supply the singledosing machines. FLSmidth Pfisters know-how includesthe complete setup and surrounding of the installation likesilo engineering, intermediate material transport and safetyequipment. That ensures that customers get all engineeringfrom one experience partner and one single source.In the meantime Holcim Cement Australia has also installeda rotor weighfeeder Pfister TRW-K at their coal mill,feeding 20 t/h.

FLSmidth provides sustainable productivity to the global mining and cement industries. We deliver market-leading engineering, equipment and service solutions that enable our customers to improve performance, drive down costs and reduce environmental impact. Our operations span the globe and we are close to 10,200 employees, present in more than 60 countries. In 2020, FLSmidth generated revenue of DKK 16.4 billion. MissionZero is our sustainability ambition towards zero emissions in mining and cement by 2030.

long-lasting coal mill for efficient grinding | flsmidth

long-lasting coal mill for efficient grinding | flsmidth

Our ATOX Coal Mill is a compact vertical roller mill that can grind almost any type of raw coal. The coal mill utilises compression and shear force generated between the large rollers and the rotating table to crush and grind raw coal, removing the need for a separate piece of equipment for crushing. The coal mill can also grind petroleum coke and anthracite down to a fineness below 5% +90 micromillimeters (mm) when coupled with a variable speed mill motor.

As the feed material is added to the mill, the moisture evaporates almost immediately. A continuous gas stream from the nozzle carries the finer particles to the separator, where they will be assessed for the specified fineness. For safety reasons, the coal mill is designed with no external recirculation of materials. Material is prevented from spilling over the edge of the dam ring as both the dam ring height and grinding pressure are adjustable.

The ATOX Coal Mills efficient separator allows material that has reached the required fineness to leave the grinding mill and sends oversized material back for further grinding. The fineness is controlled by adjusting the rotor speed. The high efficiency of the separator is due to the rotor being equipped with an outer ring of louvre plates that are hardfaced for longevity.

The durable grinding mill can handle virtually any type of raw coal and has been designed to grind feed materials with varying moisture levels. The ATOX Coal Mill handles feed materials with less than one percent moisture and up to 25 percent moisture, where abrasiveness and stickiness is not an issue for grinding.

The materials used to produce the ATOX Coal Mills segmented wear surfaces are durable and therefore, last longer. The reversal of liner segment option maximises use of these hard surfaces, making sure every surface is exploited while helping to address uneven wear at the same time.

The separator, with the highest mill capacity, ensures high separation efficiency through having a low bypass to reject. An efficient separator leads to a number of benefits including low specific power consumption for the mill motor, low vibrations, energy savings due to minimal pressure loss, and optimised airflow.

Long-lasting durability is extended to the separator where the inside of the reject cone and outlet top section are faced with Densit. The wear plates for the louvres are also hardfaced to maximise wear life.

The ATOX Coal Mills equipment is located at or above floor level for easy maintenance and cleaning. There are easy-access doors for inspection and maintenance of all of its parts, where roller replacement can occur while still inside the mill. For comprehensive maintenance, the large door is removable for crane access.

Our coal mill offers the flexibility of non-inert and inert operation, depending on the exploding potential of your coal type. The tailored layout considers your coal grinding needs, ensuring simple and optimised operation. For example, the availability of heat sources to dry raw coal helps determine the final layout.

Liner segments can be reversed so that the wear, which normally occurs on the outer edge, can be spread evenly, making use of the entire segment surface. The coal mills liner segments can also be repeatedly hardfaced for maximal longevity.

The heated rotary feed sluice ensures uniform flow of feed into the ATOX Coal Mill for optimum mill operation including minimising power consumption. It is the right solution for a sticky feed material as hot gas from the mill inlet is guided through the rotor, preventing the sticky

FLSmidth provides sustainable productivity to the global mining and cement industries. We deliver market-leading engineering, equipment and service solutions that enable our customers to improve performance, drive down costs and reduce environmental impact. Our operations span the globe and we are close to 10,200 employees, present in more than 60 countries. In 2020, FLSmidth generated revenue of DKK 16.4 billion. MissionZero is our sustainability ambition towards zero emissions in mining and cement by 2030.

operations and maintenance training for ball mills

operations and maintenance training for ball mills

Learn how to optimise your ball mill systems in this 5-day training seminar focused on best practices for operations and maintenance (preventive and reactive) to achieve energy savings, reduced maintenance costs and overall improved productivity of the ball mill systems. Ball mills are used for many applications in cement production: raw meal grinding, coal and petcoke grinding as well as finish cement grinding. Each of these systems have their similarities and differences. This ball mill seminar is designed to train your personnel on the overall technology, operation and maintenance of your ball mill cement grinding system. The seminar focuses on the latest best practices for the operation and maintenance of ball mill systems to allow for optimal cement production, energy savings, reduced maintenance costs as well as the continuous improvement of the overall equipment operation. The course offers classroom instruction from our FLSmidth ball mill specialists and case studies based on real situations at different ball mill installations. Working sessions are scheduled to allow for a thorough study of the design and function of the main equipment, including but not limited to the latest methods for optimisation and possibilities for upgrades and modernisation of the current systems and operations. Maintenance training is focused on routine preventive maintenance to minimize downtime in ball mill systems, as well as developing preventive maintenance programmes and troubleshooting techniques to quickly identify and fix problems. Beyond what you will learn about your ball mill systems, this seminar provides excellent networking opportunities with our specialists as well as your counterparts from the cement industry.

Learn how to optimise your ball mill systems in this 5-day training seminar focused on best practices for operations and maintenance (preventive and reactive) to achieve energy savings, reduced maintenance costs and overall improved productivity of the ball mill systems.

Ball mills are used for many applications in cement production: raw meal grinding, coal and petcoke grinding as well as finish cement grinding. Each of these systems have their similarities and differences. This ball mill seminar is designed to train your personnel on the overall technology, operation and maintenance of your ball mill cement grinding system.

The seminar focuses on the latest best practices for the operation and maintenance of ball mill systems to allow for optimal cement production, energy savings, reduced maintenance costs as well as the continuous improvement of the overall equipment operation.

The course offers classroom instruction from our FLSmidth ball mill specialists and case studies based on real situations at different ball mill installations. Working sessions are scheduled to allow for a thorough study of the design and function of the main equipment, including but not limited to the latest methods for optimisation and possibilities for upgrades and modernisation of the current systems and operations.

Maintenance training is focused on routine preventive maintenance to minimize downtime in ball mill systems, as well as developing preventive maintenance programmes and troubleshooting techniques to quickly identify and fix problems.

FLSmidth provides sustainable productivity to the global mining and cement industries. We deliver market-leading engineering, equipment and service solutions that enable our customers to improve performance, drive down costs and reduce environmental impact. Our operations span the globe and we are close to 10,200 employees, present in more than 60 countries. In 2020, FLSmidth generated revenue of DKK 16.4 billion. MissionZero is our sustainability ambition towards zero emissions in mining and cement by 2030.

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