Since 2010 Heyl & Patterson has been blogging on the latest trends in bulk handling and thermal processing. Thank you to all of our blog subscribers for making 2015 great. It has been a busy year here at H&P and we appreciate you spending the time to read our content while sipping your mid-morning coffee.
Please enjoy a look back at 2015 through the eyes of our blog, with the five posts that our readers found to be the most interesting in our 5th year:1. Talc Processing and Applications - Talc is a metamorphic rock and the softest mineral on Earth. It is so soft that a fingernail will scratch its surface, and geologists can recognize it by its greasy feel. Talc is a hydrous silicate of magnesium, Mg3Si4O10(OH)2, and usually contains small quantities of nickel, iron and aluminum as impurities. It occurs commonly in thin layers known as foliafolia, but is also found in coarsely granular, finely granular crystalline masses. Talc appears transparent to opaque, is rarely colorless, and can be found in hues ranging from white to purple. One form of this mineral is soapstone, or steatite, which is a larger granular form of talc that is also rich in magnesium.
2. How a Fluid Bed Dryer Operates - The first industrial application of a fluid bed dryer was for a coal gasification project in 1922. The design has been vastly improved over the years, and a modern fluid bed can process many types of bulk solid materials at a wide range of moisture levels and operating temperatures. Drying rates can range from a few hundred pounds per hour to more than 100 tons per hour, with equipment size varying from a one-foot diameter circular pilot dryer to a rectangular production unit of 20 by 50 feet.
3. Drying Coal Ash to be Recycled - Despite all the advances of modern technology, coal is still a major fuel source for many communities and industries. The United States and China are two major countries that still rely heavily on coal to produce electricity, as well as for industrial uses. While steps are being taken to make coal burn cleaner and more environmentally friendly, there are still the byproducts that come with its use. One of the most common end results is the ash it produces, which in many places is accumulating faster than it can be disposed of.
4. Railcar Movers Keep Urea Processing Plants Moving Forward - Urea, sometimes called carbamide, is a solid organic crystalline compound that is colorless, odorless and highly water soluble. It is formed naturally in mammals, and serves an important role in the liver as the main nitrogen-containing product that breaks down amino acids, proteins and ammonia into waste. The kidneys scrub the urea from the blood and deposit it into the urinary tract, and it then makes up the chief solid material dissolved in urine. Urea can also be synthesized inexpensively from abundantly available inorganic materials. Because urea offers wide-ranging uses in many different industries, it is produced regularly and is available in large quantities for use throughout the world.
5. Pugmill Mixers and Factors that Impact Their Performance - The best option when searching for a pug mill mixer may be to consider six factors: agitation, drive assembly, inlet, discharge, cost and maintenance. When analyzing these options, take into account the ideal design features and decide which variables upon which it may be necessary to compromise. Finding a pug mill mixer that exactly fits an entire list of criteria may be impossible, because even if a custom solution is an option, then the cost could end up breaking the budget.
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