Main Process Line Equipment For Cement

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 Crushers



Impact   

In crushing terminology, impact refers to the sharp, instantaneous collision of one moving object against another. Both objects may be moving, such as a baseball bat connecting with a fast ball, or one object may be motionless, such as a rock being struck by hammer blows.

There are two variations of impact: gravity impact and dynamic impact. Coal dropped onto a hard surface such as a steel plate is an example of gravity impact. Gravity impact is most often used when it is necessary to separate two materials which have relatively different friability. The more friable material is broken, while the less friable material remains unbroken. Separation can then be done by screening

Attrition

Attrition is a term applied to the reduction of materials by scrubbing it between two hard surfaces.

Shear

Shear consists of a trimming or cleaving action rather than the rubbing action associated with attrition.

Compression

As the name implies, crushing by compression is done between two surfaces, with the work being done by one or both surfaces. Jaw crushers using this method of compression are suitable for reducing extremely hard and abrasive rock. However, some jaw crushers employ attrition as well as compression and are not as suitable for abrasive rock since the rubbing action accentuates the wear on crushing surfaces

 Hammer Crushers

Hammer crushers are among the oldest, yet still the most widely used crusher designs. Although recent years have witnessed the introduction of new types of crushers, many are a refinement of the basic Hammer crushers design to serve more specialized purposes.

Reversible Hammer Crushers

The Reversible Hammer crushers are symmetrically designed crushers with a rotor that can be run clockwise or counter-clockwise. Reversal of the rotor permits the operator to utilize the opposite face of the hammer daily for maximum hammer sharpness. This ability to reverse totally eliminates the requirement of manual hammer reversal.

Jaw Crushers

 For crushing of hard, abrasive materials, Jaw Crushers are often preferred, since this type of machine will crush virtually any mineral.

 Jaw Crushers differ substantially from other types of crushers. There is no rotary motion in the crushing cycle, and all crushing is done by compression of the feed material between two massive jaws, which in effect are a type of breaker plate. Jaw plates can be either smooth or corrugated. 

Clinker Crushers

The Clinker Crusher is used for handling of bottom ash, though it can readily be configured to handle other materials.

It is now widely employed as a direct replacement for the most common makes and sizes of  clinker grinders. Its efficient design improves maintainability and increases component life, thereby reducing both operation and maintenance costs. 

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Technology of crushing

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Mechanical Elements of tubes Mills For Cement industry

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صورة
Mechanical Elements of tubes Mills For Cement industry The course include  Introduction -  Nature of wear in ball mills -  Influence on lifetime for wear parts - A- Influence from material to be ground  B- Influence from lining thickness  C- Influence from lining shapes and surfaces  The mechanical elements of a tube mill can roughly be subdivided into internal and external parts.  The mill internals have a direct function with regard to the grinding process and include principally the wear parts of a mill such as mill liners, diaphragms and grinding media. The external parts of a standard tube mill consist of mill shell, mill heads, mill bearings, feed and discharge equipment and include also the mill drive. In the following the external parts of the tube mill are described under special consideration of the process technological aspects. The mill internals are described in separate chapters. The feed devices have to fulfill the following functions Continuous flow of material into mil
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Wear Parts & Wear resistant Material in ball mills

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صورة
Wear Parts & Wear resistant Material in Mills   The equipment in the grinding installations therefore will have to be protected with sufficient wear resistant materials for two different reasons  In order to protec t the equipment from     damage and decay.- In order to maintain maximum output at optimum operating conditions-. Nature of Wear in Ball Mills Grinding in ball mills takes place by lifting the grinding media charge and the material to be ground followed by a return to the bottom part of the mill tube In this continuous cascading movement. The material quality of the wear parts in a ball mill must therefore partly be resistant to over hammering without cracking, and partly withstand abrasive wear. Wear Resistance Cement Mill Grinding Ball In Carbon Steel A. Chrome Alloyed Ball Mill Liner Plates C. High Manganese Steel Ball Mill Liner Plates B. Chromium-Molybdenum Alloyed Ball Mill Liner Plates C. High Manganese Steel Ball Mill Liner Plates - Cast grinding ball mill liner
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Visit inside CF-silo To know its components

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صورة
CF Raw Meal Silo How it works  The CF (Controlled Flow) silo is a continuously operating system for homogenization and storage of cement raw meal, where the material is extracted simultaneously at different flow rates from a number of outlets in the silo bottom. The CF system, including suitable kiln feed equipment, ensures stable kiln feed composition at minimum power consumption and investment cost. The efficient performance of the CF homogenizing silo results in stable kiln operation so that changes in kiln speed or firing rate are rarely needed and stable coating in the kiln is maintained. In order to ensure high homogenization efficiency, all the raw meal in a silo must be kept in constant movement towards the outlets. Furthermore, the raw meal must pass through the silo in flow zones with different residence time. The CF silo complies with these demands. It extracts raw meal at different rates from several outlets in the silo bottom and mixes the stream from these outlets. The CF
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