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Merkle International, Inc. supplies coke calcining facilities with complete structures for their operations. Merkle supplies roofs, walls and other structures. These structures are made using the proprietary Merkle Modu-Lok® system. The Modu-Lok system is comprized of pre-fired refractory shapes along with metallic hangers and structural steel-for support. These pre-fired shapes generally have a longer installed life and higher resistence to corrosion than plastic or castable systems.
Merkle has extensive experience in suspended refractory systems, dating back to 1973. We work with our customers to find the best long-term solution for their furnace roof situation. Our staff will work with you to determine the exact refractory quality that fits your process and your budget.
As a supplier of innovative equipment and systems, Merkle is also a problem-solver.
The Best in the Business
Merkle works with its customers in the cement industry and delivers what the customer needs. Our scope of supply can include structural support steel supporting our refractory system. We can also provide fabrication details for that steel, for local fabrication (saving shipping costs). Our attention to detail has earned Merkle a reputation for customer service with its clients. In addition to supplying our innovative and highly functional products, we purchase and inspect material, and provide technical support during installation.
MODU-LOKŪ - an interlocking suspended refractory system for roofs, walls, bullnoses and curtains.
The Modu-Lok system uses prefired refractory to provide a lining of uniform density.
Hanger and filler brick have structural, load-bearing treads on all four sides. Materials are chosen
to suit the particular application, e.g. thermal shock-resistant refractory is chosen for applications
with cyclical temperatures; very dense material is chosen for highly corrosive or abrasive atmospheres.
Simplicity
Two shapes build the complete roof or tied-back wall--often with complex configuration.
Versatility
Support brick can be placed on 4-, 8-, 12-, or 16-inch centers.
Stability
Support brick is heavily treaded on all four sides to support maximum number of filler brick.
Thermal Efficiency
Allows for maximum insulation. With hangers on 8-inch centers, the Modu-Lok roof allows for 75% coverage; with hangers on 12-inch centers, coverage is 84%; with hangers on 16-inch centers, coverage is 88%.
Metallic Support
Design locks metallics on both support brick and steel structures. Metallics are clear of insulation, which adds to service life. Metallics can be made as stampings or castings in materials to suit particular applications.
Modu-LokŪ Suspended Roof
The Modu-Lok system is used in roofs for high-temperature applications ranging from chemical incineration
to glass making; from metals smelting to mineral processing. The structural treads allow this flexibility--providing
sturdy linings with maximum insulation coverage.
MT Modu-LokŪ Walls
Modu-Lok walls are supplied in tied-back only and suspended and tied-back designs. For high-wear areas and/or taller walls, the suspended and tied-back construction is recommended. For both designs, the metallics and support steel are kept a safe distance from the insulation. This aids the cooling of the metallics and lengthens their life.
MT Modu-LokŪ Bullnoses
Modu-Lok bullnose construction provides a roof-to-wall or wall-to-wall transition,
using prefired refractory material. This construction is supported by the same sturdy
refractory hanger design used in the roof and walls. The nose is turned with radial-shaped
fillers, and can be designed to turn various angles. This system can be supplied for
different radii, depending on application.
MT Modu-LokŪ Curtain
The MT Modu-Lok construction allows construction of independent flat suspended covers, and suspended curtains or baffles. This construction is extremely simple, with the curtains built using only one parent shape.
CMC403 and M203-C Castings, Flange-LokŪ
CMC403 and M203-C castings, as well as Flange-LokŪ metallics are used in the Modu-LokŪ system. Please see our data sheets for more information.
CMC403
M203-C
Flange-LokŪ
If you have any questions about the Modu-Lok® design or its suitability for your application, please contact us by telephone, fax, e-mail, or mail.
Merkle International, Inc.
100 Perry Street, P.O. Box 312
Galena, IL 61036 USA
Tel: (815) 777-2100
Fax: (815) 777-2106
E-mail: sales@merkleintl.com
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