How users achieve optimum results

Efficient use of cone crushers

A cone crusher is often used in the second to third crushing stage and operates according to the pressure crushing principle. It is suitable primarily for use in medium-hard to hard and abrasive natural stone and in mining applications. In the second and third crushing stage cone crushers produce a very high final grain quality.

Perfect results can only be achieved with optimum operation of the crusher. Apart from the selection of the correct crushing tool, there are a large number of variables that influence the crushing capacity of a cone crusher. The following points must be observed in order to operate a cone crusher efficiently and reliably.

Increasing demands on the final product make intelligent machines that support operators with their work necessary. Plants therefore become increasingly more complex, however, long periods of instruction for operators are often not possible in practice. As an innovative manufacturer of crushing and screen plants, KLEEMANN has therefore set itself the objective of adapting its machines to user requirements and of developing user-friendly elements.

The KLEEMANN design offers numerous different features that facilitate work for the operator. For example, the Continuous Feed System guarantees a continuous crusher load. This system monitors the crusher fill level with a sensor and automatically controls the supply of the feed material. The machine can also automatically adjust the crushing gap in an overload situation. The integrated overload system protects the crusher against uncrushable material such as wood or metal and also operates automatically.

As a general rule, operation of KLEEMANN plants is designed in a simple and intuitive manner. The control concept SPECTIVE allows the machines to be operated conveniently at a touch panel. All components and functions can be controlled comfortably from the ground. The standard series radio remote control even makes ergonomic operation from the excavator or wheel loader possible.

Our local contact partners provide you with comprehensive support for all applications and questions related to our products. Thanks to our closely-knit, global WIRTGEN GROUP network, we guarantee short reaction times and quick solutions. Original parts and accessories on site assure the high reliability and availability of the machines.

www.kleemann.info/kegelbrecher;

Do’s

 Fill evenly and avoid running empty

A material layer should always be present in the feed hopper because this reduces wear. Avoid overfilling and ensure that filling is even because this guarantees a constant load and prevents serious fluctuations. Your process and plant run more stably.

 

 Observe the maintenance and inspection intervals

Regular maintenance and observance of the inspection intervals increase plant availability and thus the productivity.

 

 Monitor the process regularly during operation

Regular monitoring allows operators to detect overloads in good time and to adapt process parameters. Overfilling of hoppers must be avoided, also in the case of material return sections.

 

 Prior to starting: check the process

Before using in a new application, you have to check whether the installed tool is suitable for the task and which crushing gap can be operated. Process simulation can provide support in this area.

Dont’s

 Avoid loading wet and sticky feed material

This can lead to a blockage of the crushing process which, in turn, increases the risk of overloading and permanent damage to the crusher.

 Observe the correct feed size

Feed sizes that are too large or too small can both have negative effects on the process and can damage the cone crusher. Select the tool to match the feed size and the final product and adapt the feed size to match the tool. Ensure that only material of the same type is loaded and avoid gap grading.

 Adapt the processes in case of overload

Overloading of the crusher is characterised by strong movements on the bowl and by briquetted material on the crusher discharge conveyor. Prior to feeding, the feed material must be pre-crushed to make it smaller or fine material must be prescreened. If necessary, the crushing gap must be increased. An increase in speed can also have a positive effect.

 Avoid fines

When fine material is fed in, tool wear and the crusher load is significantly higher than with prescreened feed material. Therefore activate the primary screening at the upstream jaw crusher or, alternatively, position a screen machine before the cone crusher to separate fine material.

x

Related articles:

Issue 2017-04

Sandvik launches powerful secondary stage crusher

The new Sandvik CS550 cone crusher launched at CONEXPO-CON/AGG is a powerful secondary stage crusher for 700 to 750-tonne applications. In addition to flexibility and sheer tonnage, it offers advanced...

more
Issue 2012-07-08

Metso to supply big mining crushers

Metso has signed a contract with Codelco in Chile to supply big cone crushers for a process improvement project in the Chuquicamata division, operating two copper and molybdenum producing mines, named...

more
Issue 2013-11

Saving one crushing stage in the production of high-grade chippings

In Roetz in the Upper Palatinate region of Germany – not far from the Czech border – the long-established building materials company Georg Huber (owned by Josef Rappl GmbH & Co. KG) is managed by...

more
Issue 2018-09

Intelligent crushing – the new Sandvik CH800i series

The Sandvik CH800i series of connected cone crushers is the first to offer intelligent crushing based on actionable information via the My Sandvik portal – the latest innovation in Sandvik crushers....

more

Metso celebrates the milestone of 10 000 HP Series cone crushers sold

Metso has reached the significant milestone of 10 000 Nordberg® HP cone crushers sold globally. The most popular modern cone crusher in the world, the HP SeriesTM celebrates its 30th anniversary...

more