Wednesday, 10 June 2015

Mehran Ceramics's hot face lining works.

Mehran Ceramics refractory furnace linings.

Metal casting is done by many different furnaces within the mining industry of which electric arc furnaces, blast furnaces, cornwall furnaces and iron furnaces are only a few examples.  Every one of these different types of furnaces are manufactured for different purposes but they each have one thing in common which is that, during the manufacturing process refractory lining material is vital.  
 
Electric arc furnace that makes use of refractory lining material:

This type of burner melts charged metal by making use of electricity (an electric arc).  Depending on the size of the furnace, it is able to either melt from 1 ton all the way up to 400 tons.  The smaller electric arc furnaces are used in metal foundries to produce cast iron and the larger ones are preferred during steel making. These electric arc furnaces burn with temperature reaching up to 1800 degrees Celsius.
 
The blast furnace that makes use of refractory lining material:

It is commonly referred to as a metallurgical furnace as it melts metal through the process of smelting.  It differs from and electric furnace in the way that it does not have a special operation technique – one would simply load the metal into the furnace until it reaches melting temperatures and is used during cast iron melting.
 
 
The blast furnace is preferred to the electric arc furnace many times due to its easy manageability.  Where the blast furnace is simply loaded and operates until the iron is melted, the electric arc furnace has to be under constant supervision to make sure that the furnace reaches the correct temperature and also preventing overheating which will cause the metals to become unusable.

This blast furnace contains different sections called the refractory-lined vessel, retractable roof and the furnace itself.  The furnace is divided into three sections called the shell, the hearth and the roof.  These all have to be pre-prepared with refractory lining material for optimum efficiency.

As mentioned, any type of furnace is designed and manufactured with extremely high temperature levels in mind.  This is due to metals not being able to melt at standard temperatures and have, in the past only been shaped by extremely hot temperatures as within a volcano.  

As one can imagine, it takes extreme engineering for any item itself to be able to withstand these temperature levels which explains why any industrial furnace should include refractory lining material into its design.  Refractory lining material greatly lengthens the lifespan of any furnace which thereby keeps it functioning without wearing out.  It is such and important aspect therefore as it could directly relate to more hours of function and less expensive running costs.

 
Our consolidated and integrated solution covers all disciplines and services in furnace-rebuild projects:
Project and construction management;
Salamander tapping and controlled furnace decommissioning and cool down;
Mechanical, structural, steel and piping dismantling, fabrication and erection;
Refractory materials’ management, including selection, procurement, and testing;
Quality assurance and control systems;
Demolition of furnaces, removal of refractory linings, and waste management;
Design, manufacture and installation of anchor systems for all types of monolithic, ceramic fibre, and brick refractory linings;
Manufacture of customised, refractory precast shapes;
Installation of all types of refractory linings’ materials, including bricklaying, pneumatic gunning, ramming, pumping, vibrocast and placement of castables, and ceramic fibre products – across all furnace designs;

Hot and cold furnace repairs; Hot sealing and insulation;
Drilling and installation of thermocouples; Drying and curing of refractory linings; and Furnace start-ups and commissioning.
 
All our customers gain the advantages of our rapid response times, integrated project implementation, project quality and completion guarantees, safe project implementation, reduced downtime, and significant production-cost savings.
 
Refractory Installation Specialists
 
Our company has more than 26 years’ experience with refractories – having pioneered the refractory business in Karachi, Pakistan.
 
The Mehran Ceramics is Pakistan's most high-profile refractory installation company.

We employ some of the most experienced refractory engineers, project managers, supervisors, refractory tradesmen and assistants in allover the country, Mehran Ceramics has installed refractory materials to numerous initial construction and furnace rebuild projects throughout the world.
 
Our extensive experience allows to service all refractory-consuming industries, including: cement and lime, ceramic, glass, ferrous and non-ferrous, chemical and petrochemical, paper and pulp, and power generation.

Mehran Ceramics is committed to superior standards of workmanship and strives to continually improve its refractory installation services. Our ability to provide timely and comprehensive service to all our customers for initial construction project rebuilds, and scheduled maintenance and emergency repairs – sets the Mehran Ceramics apart from all its competitors.

Mehran Ceramics strive to make use of only the best quality refractory lining material.For more check out the website: mehranceramics.com

Saturday, 6 June 2015

Mehran Ceramics material applications. Refractories – Applications

Mehran Ceramics material applications.
Refractories – Applications
Copper
Linings and parts for both shaft and holding furnaces in a range of materials.

Electrical Ceramics
A wide range of saggars, batts, sandwich tiles and kiln and furniture, in high purity materials designed and manufactured to meet specific customer requirements.

Energy from Waste (EfW)
Boiler wall tiles and grate shapes manufactured from the highest quality materials, to perform in aggressive environments.

Furnaces & Kilns
Wide range of linings, dependent on the application and operating atmosphere, including high purity alumina to 99.5% with low silica.

Mineral Processing
Numerous applications for wear resistant components, including high temperature and aggressive environments.

Petro-chemical
Domes, catalyst supports and linings for various aggressive environments in a range of materials.

Powder Metallurgy
Crucibles and nozzles in a range of materials including zirconia.

Power Generation
Burner quarls and pipe lining systems for high erosion and temperature zones.

Primary Aluminium
Reduction cell wall linings in silicon carbide, produced to meet specific pot requirements.

Secondary Aluminium
Molten metal movement components in a range of materials.

Steel
Annealing furnace linings flow control and high temperature wear components, including high purity alumina to 99.5% with low silica.

Technical Ceramics
High purity batts, saggars, tiles designed and manufactured to meet specific customer requirements.