Kalcret Wear Protection (Continued)
(continued)
Wear Protection Material out of a Bag
KALCRET is supplied loose in bags, then mixed with a defined quantity of water in a suitable mixer and applied by different methods. These include, in particular, trowelling, casting and spraying.
To enhance the structural stability, steel or other fibers are admixed at a specified portion. The type of fibers added depends on the thermal, chemical and/or corrosive stress. KALCRET reaches high compressive strength as early as after 8 hours. That level already corresponds to 75 % of the final strength. This is enough to restart plant operation after repairs.
Lining without Joints
KALCRET allows uniform and jointless lining of large plant surfaces. The lining thickness can be chosen with due regard to the specific requirements. In practice this ranges mostly between 20 and 100 mm. There are no restrictions as to the geometry of the system components.
Spraying is State-of-the-Art
Kalenborn have made great efforts further to develop the working technique of KALCRET. The spraying method is the most recent achievement. Sprayed-on KALCRET enables to apply KALCRET-S at rates of more than 5 m within a minimum of time. This is true for a layer thickness of 25 mm.
Spraying may be done horizontally or vertically. Even overhead working and lining of complicated surfaces are feasible without difficulty.
Trowelling of KALCRET
The most widely adopted working method for KALCRET hard compound at the site is trowelling. The reason is not only the universal applicability of wear protection compounds available in bags but also the relatively simple tools required.
KALCRET is homogeneously mixed in no more than 5 minutes and can be easily applied by the relevant tools on the prepared subsurface. The typical layer thickness ranges between 20 and 80 mm.
KALCRET trowelled compound provides for effective protection of horizontal, vertical, inclined and bent surfaces. Obviously, overhead working can be simply and reliably realized by the KALCRET trowelling technique as well.
For more information, please visit:
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Photo 2:
Sprayed-on KALCRET-S upon overhead installation
in a clinker dust transport pipe
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Kalcret Wear Protection (Continued)
(continued)
KALCRET Cast Compound
Adopting the KALCRET cast compound will be of particular advantage when plane surfaces have to be protected against wear. Normally, simple formwork will then be adequate. Special formwork is required for vertical and inclined surfaces which will have to be backed.
Solutions for Special Applications
KALCRET hard compound as prefabricated shapes has performed extremely well in practical operation. Tiles and shapes from KALCRET cast compound are produced at the Kalenborn plant. The shapes can be laid in mortar or provided with the well-known mechanical fastening systems, such as weld bolts.
Prefabricated pipes and pipe bends lined with KALCRET have been particularly successful in actual practice. Complete product ranges are offered for this application. They correspond to the time-proven Kalenborn inplant standard Rd 6a. Pipes and pipe bends lined with KALCRET are produced with standard inside diameters of 40 mm and more. Even asymmetric cross sections to improve the service cycle can be realized any time.
KALCRET is a wear protection material that can be used over a wide temperature range up to 1,200°C. Kalenborn offer various solutions for such applications. For example, an insulation material can be additionally used to achieve a system with optimized temperature gradient. This allows to reduce heat losses and the use of low cost, unalloyed structural steel types.
Photo 3:
Scrubber inlet in a steel plant with sprayed-on
KALCRET-BTS hard compound
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Kalcret Wear Protection (Continued)
(continued)
Extensive References
In view of their many years of practical experience Kalenborn can offer comprehensive references in most varying branches of industry, such as the cement industry, coal mining and the steel making industry. The practical use of Kalenborn products covers most varying components of mechanical and pneumatic conveying.
Kalenborn have published numerous brochures giving detailed reference descriptions. They can be asked for any time under:
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Photo 4:
Separator of a cement mill lined with
KALCRET-BNX, up to 3,200 mm diameter
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KALCRET Wear Protection
Wear Protection Highlighted by Flexible Use
KALCRET Hard Compound Profiting of On-going Development Work
KALCRET hard compound has been successfully used by most varying branches of the basic industry for several years. KALCRET is a wear protection material that withstands high stress and which is at the same time characterized by universal and flexible applicability. Kalenborn continuously advance the design of the KALCRET material.
KALCRET includes cement bonded wear protection materials. Their basis are at any rate inorganic hard materials of great hardness and good wear resistance. The exclusive use of extremely hard substances like bauxite and corundum ensures the high quality of the wear protection material. As a general rule no low-cost filling materials are added.
Special attention is paid to high packing density. This is achieved by well balanced particle size and granulometry. The pores between the cement portions are filled due to the use of ultra-fine particles of micro and nano silica. This results in extraordinary good final strength.
For more information, please visit:
https://edir.bulk-online.com/profile...kalprotect.htm
Photo 1:
The Kalenborn trowelled compound efficiently
protects all surfaces – even overhead surfaces
Attachments
kalcret_1 (JPG)
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