Articles

Bucket Elevators are ideal for elevating a variety of bulk materials economically, efficiently and reliably. The two main type of Bucket Elevators are Centrifugal type and Continuous type. Centrifugal Type Bucket Elevators These elevators depend entirely on the action of centrifugal force to get the material into the discharge chute and must be run at speeds relatively high. Nearly all centrifugal discharge elevators have spaced buckets with rounded bottoms. They pick up their load from a boot, a pit, or a pile of material at the foot pulley. Continuous Type Bucket ...  Read more 

INTRODUCTION The initial particulate emissions requirements of 0.04 grain/dscf and maximum opacity of 20 percent, although routine now, were very difficult to meet at the seventies. Baghouses became the industry’s most effective answer. Today, after more than 25 years of refinement, baghouses are capable of much better performance than the 0.04 grain/dscf standard. With the Clean Air Act Amendment of 1990 came a shift of emphasis, on the part of the Environmental Protection Agency, from regulation of emissions to regulation of ambient air quality. An area which is ...  Read more 

History & Application Cement mortar has been used to line pipe since the 1840s. In the 1920s the process of centrifugal spinning was perfected. This process allowed the rapid application of linings to the entire pipe surface by placing a mixture of sand, cement and water into the pipe and rotating it at high speed. The centrifugal forces distribute the lining around the pipe circumference and compact it against the pipe wall. At the same time excess water is spun out, leaving a smooth surface mortar, with a very low water to cement ratio. Together ...  Read more 

Shot Blasting is a surface treatment process using high velocity steel abrasive.  Shot blasting is method through which it is possible to obtain excellent cleaning and surface preparation for secondary finishing operations.   Shot blasting is commonly used for: •   The cleaning of iron, steel, non-cast parts, forgings, etc. •   Mechanical cleaning of sheets, rods, coils, wire, etc. •   Shot peening to alter mechanical properties (increasing resistance to fatigue for springs, ...  Read more 

Blast machines are widely used in different industries such as: Cathodes and Anodes cleaning: Shipyards: Cleaning and preparation of profiles and sheets surfaces before painting Portable machines for the maintenance of ship hulls Automotive components: Cleaning of gearboxes, mechanical transmissions, connecting rods, etc. Shot peening of stabilizing bars, springs and elastics, gearboxes, pistons, connecting rods, etc for increasing fatigue resistance. Cleaning and preparation of car and truck tires before painting. Break shoes and clutches ...  Read more 

There are a number of units and scales commonly used to measure particle size. These either refer to average particle diameter measured in units of length, typically microns, or refer to a smallest mesh size through which the particles will pass. The following table sets out conversions between a variety of systems:   US MESH TYLER SCREEN BSS ...  Read more 

Agglomeration The clumping of powder particles bound together into clusters containing trapped air.   Air Classification Air classification is a technique by which dry powders of mixed particle size are separated into two distinct fractions, one above and one below a definite cut point. This is achieved by exploiting the differential forces acting upon particles of different size and mass within an air flow system. Different techniques can be required to achieve this depending on the material and particle sizes involved and British ...  Read more