A large number of analytical and highly empirical correlations including monograms reflecting changing standards have been or are being proposed separately for gas and dust explosion relief venting. This white paper provides a generalized formula that is applicable to both gas and dust deflagrations including subsonic and sonic pressure relief conditions and is consistent with available experimental data and industry experience. Application of the model is illustrated for dust explosions. Download now.05/06/2011
When choosing filters for your cartridge dust collector, a Total Cost of Ownership (TCO) calculation allows you to make the most economical and sustainable choice. TCO is a step-by-step evaluation that explores energy use, maintenance and other factors to compare the real costs of operating a dust collector with different filters. This white paper explains how to perform TCO calculations to save money, time and energy.03/04/2011
In March 2008, OSHA reissued its Combustible Dust National Emphasis Program (NEP) notifying approximately 30,000 companies nationwide that they will be targeted for inspections over the next few years. Mettler Toledo recognizes that many manufacturers are not up-to-date on the latest hazardous area compliance regulations or may not know that their industry is subject to those regulations. Don't wait until your facility receives a surprise visit from OSHA or worse yet, for a catastrophic incident to occur. Take the proactive approach to addressing the "hazardous area advisory level" in your facility.09/20/2010
Over the past decade, cartridge-style dust collectors have overtaken baghouses as the preferred technology for dust collection in the chemical processing industry. Combining high efficiency filtration with compact size and reduced pressure drop, a high efficiency cartridge dust collector will in most cases be the system of choice.
Choosing the best cartridge collection system for a given application, however, involves research and attention to detail. This article will review four key areas of investigation. By reviewing these topics with a knowledgeable equipment supplier and knowing the right questions to ask, chemical manufacturing professionals will be better equipped to make informed dust collection decisions. Download this whitepaper now.06/21/2010
The collection and testing of dust samples is a long-established practice used by many powder and bulk processors to make informed dust collection decisions. Dust testing protocols have not changed markedly in recent years. The importance of dust testing, however, has changed, and the implications are significant. While knowing your dust has always been good practice, it is rapidly becoming a necessity in today's regulatory climate.
This article will review two separate types of testing: (1) explosibility testing, which is used to determine whether a dust is combustible; and (2) bench testing, which pinpoints numerous physical properties of the dust. Both categories of tests are needed to determine the best dust collection system for your application and whether explosion venting equipment must be part of that system.03/16/2010
No matter what industry youre in, chances are you use some form of conveying. Whether it be pneumatic, flexible screw, aeromechanical or other, different conveyors are required to handle different products. But which conveyor is best suited for your operation? Despite the fact that conveyors have been around for almost a hundred years, this question still baffles many industries. In order to choose the right conveyor for your operations, you need to consider your conveyor's use - production, processing, packaging, and you need to consider your business objectives - improve operations? reduce labor?
In this special report, we look at the different types of conveyors, discuss the use of tubular bag conveyors, and provide 10 tips to prevent a variety of common problems that could occur with pneumatic conveyors.04/20/2009
This paper will discuss the use of pattern recognition techniques to identify and differentiate different particle types contained in a heterogeneous solution. This application involves imaging the microscopic particles in real-time as they flow in a solution, segregating each individual particle as a separate image, and then applying pattern recognition techniques to differentiate the individual particle types.A framework for discussing the complexity of a pattern recognition operation in this application will be proposed, along with some specific examples showing how this framework applies.09/03/2008
Samsung General Chemicals manufactures various petrochemicals and polymers. The cooling step in their polypropylene line was a bottleneck that limited the amount of powder polypropylene that they could produce per year. The PP is used for a wide variety of applications ranging from packaging films to automotive components.07/21/2008
Plants have traditionally used trays in the distillation columns to produce fuels grade ethanol. Trays of various configurations have been adequate in this service and their technology is well founded. The ever-present desire to reduce the energy needed to produce a gallon of ethanol has opened the doors to structured packings being used in the rectification sections of ethanol distillation columns.04/10/2007
Manufacturing a pure product can be critically important to the next steps in the manufacture of a powder-based product. As a result the removal of residual moisture and solvents from the crystallization, filtration and drying steps can be crucial to producing a stable product.06/28/2006
This application note describes two technology solutionscontinuous weight information using loadcell systems or level information using ultrasonic systemsto the problems faced by day bins supplying downstream operations.05/22/2006
This 4-page case history by Jeroen van den Berg of Bolz-Summix discusses how changing process conditions within a conical screw dryer eliminated granulation and minimized product segregation.05/02/2006
In this article, Kumar Dhanasekharan, Ph.D., technical specialist with the computational fluid dynamics (CFD) specialist Fluent, Inc., shows how modelling crystallizers using CFD can help improve process understanding, control crystal size distribution (CSD) and improve pharmaceutical crystallization results.03/06/2006
In this white paper, Mark Hallworth, pharmaceutical manager for Particle Measuring Systems, discusses continuous monitoring methods, how theyre evolving, and why theyre important.02/06/2006
This application note from Delta Controls outlines selection and installation criteria for using admittance probes to monitor the level of powders, liquids and other materials. Dielectric constants of more than 200 materials are included.01/05/2006
This 16-page PDF white paper addresses the design of reliable feeders in your bulk material handling system.09/01/2005
This application note from Delta Controls outlines selection and installation criteria for using admittance probes to monitor the level of powders, liquids and other materials. Dielectric constants of more than 200 materials are included.07/05/2005
Specifying a hygienic bulk solids feeder is not a simple task. The wide variety of requirements needed for specific applications are similar in scope to explosion proof environmental requirement variations.06/06/2005
This 23-page white paper is from the Material Handling Institute's Classic Series and discusses the reliability of automated material handling systems.05/31/2005
This 11-page PDF whitepaper creates an outline for a standardized approach to the devices and items routinely provided to allow personnel to cross unit handling material handling conveyors.05/01/2005