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
Gaseous oxygen measurement with amperometric sensors is the most direct and easiest solution for oxidation and explosion protection.
Unwelcome oxygen Tank blanketing is the process of filling the headspace in storage vessels and reactors with an inert gas to prevent its contents from exploding, degrading or polymerizing and to protect equipment from corrosion. A blanketing system is normally designed such that it operates under higher than atmospheric pressures, therefore preventing outside air from entering the vessel. As oxygen and moisture in the air can be undesired in numerous processes and applications, blanketing is done in a wide range of industries, varying from (petro)chemical to food and beverage, pharmaceutical to pure water.01/06/2010
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
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 16-page PDF white paper addresses the design of reliable feeders in your bulk material handling system.09/01/2005
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
Fine powders present problems that bulk solids do not when they are contained in a bin, hopper or processing vessel. The primary problem is the powder's flow pattern. This 10-page PDF whitepaper discusses solutions to this problem.03/01/2005
This nine-page whitepaper discusses the sources of powder flooding, the dangers it can pose to your equipment and the steps you can take to prevent it from happening.03/01/2005
This short two-page PDF whitepaper first discusses how an arch develops within a hopper and then disusses strategies for effectively removing them.01/31/2005
This 26-page white paper from Monitor Technologies discusses the difficulties in measuring bulk solids and powders in bins, silos and hoppers. Download this document to learn which technologies are out there that can make this job easier.01/03/2005
This 5-page document discusses how to improve the return on investment by appropriate auditing of materials-handling operations.10/15/2004
This white paper from Delta Controls outlines a range of selection and installation criteria for using admittance probes to monitor the level of powders, liquids and other materials. Dielectric constants of more than 200 common industrial materials are included.10/15/2004