Heyl & Patterson Blog

Unloading Wood Chips for the Production of Paper Pulp

Posted by David Phillips on Wed, Mar 25, 2015 @ 09:48 AM

Even in today's "paperless" world, there continues to be a huge demand for paper.  Paper is made from wood pulp, which is also used to manufacture a wide variety of products from diapers to particle board to textiles. The pulp itself is the cellulose, lignin and hemicellulose components of wood fibers, which are separated from one another through steaming, cooking or mechanical grinding processes.  Most pulp is made from a mixture of sawmill residue, logs, wood chips and recycled paper, and it is interesting to note that practically all of the fibers that end up as pulp originally existed as trees.

Read More

Tags: bulk material handling equipment, rotary railcar dumpers, railcar dumper unloaders, wagon tipplers, biomass, pulp & paper, wood chips

Fertilizer Drying Leads to Higher Yields

Posted by David Phillips on Wed, Mar 18, 2015 @ 09:30 AM

Farmers are responsible for nearly every morsel of food we see on our tables each day.  Whether it's crops of grains, fruits and vegetables, or feed for the animals that provide us with meat and dairy products, ensuring that growers are able to get the best possible fertilizer is not just in their best interest, but everyone's.  Fertilizer dryers come into play in order to get higher yields, and to understand why, it is necessary to first take a brief look into what fertilizer does and its important role in our lives.

Read More

Tags: industrial dryers, rotary dryers, fertilizer, dewatering

Railcar Moving Devices Offer More Efficiency Than Locomotives

Posted by David Phillips on Wed, Mar 11, 2015 @ 09:10 AM

Rack-Drive-PositionerLocomotives are a common means of moving railcars and strings of cars, but that action does not make them rail car movers.  Ports, power plants and industrial facilities share the logistics of locomotive use to break trains into strings, transfer strings to the loading or unloading facility, position individual cars for loading or unloading, re-assemble trains and perform other rail duties at a particular facility.  However, more manpower is needed, and safety is always a major concern.  Line of sight is never optimal, so any train movement could result in injury or worse.

Read More

Tags: railcar movers, side arm chargers, railcar indexers, CUB railcar mover, train positioners

Pugmill Mixers and Factors that Impact Their Performance

Posted by David Phillips on Wed, Mar 04, 2015 @ 09:20 AM

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.

Read More

Tags: process equipment, powder processing, powder & bulk solids, pug mill mixers

Turning Powders, Dusts and Sludges Into Easy-To-Handle Granules

Posted by David Phillips on Wed, Feb 25, 2015 @ 09:00 AM

Agglomeration and granulation are two common terms used in process industries, and they are actually synonyms.  Granulation is the process of forming a powder, dust or sludge substance into multiparticle entities, and the resulting granules can vary in size from either 0.2 to 4 mm depending on their specific use.  Agglomeration is also known as particle size enlargement, and is a general wide-spectrum term for granulation.  These technologies are excellent tools to modify mass product properties for further and easier processing.

Read More

Tags: agglomerator/granulators, powder processing, powder & bulk solids, fluidized bed, pellets

Heyl & Patterson Introduces New Barge Unloaders Brochure

Posted by David Phillips on Wed, Feb 18, 2015 @ 09:20 AM

Since 1887, Heyl & Patterson has designed and constructed efficient, rugged and durable barge unloading equipment for use in bulk material handling.  These high capacity machines have solved a variety of unloading problems for many customers across several industries.  Diverse cargoes such as coal, corn, soybean, wheat, agricultural by-products, wood chips and limestone can be successfully unloaded.  As part of our continuing efforts to update our customers on our product lines, a new Barge Unloaders brochure has been added to the Bulk Transfer Division line of literature.

Read More

Tags: Heyl & Patterson, barge unloaders, grain, literature, continuous barge unloader (cbu), grab unloaders

Silica Gel and Its Use as an Effective Catalyst

Posted by David Phillips on Wed, Feb 11, 2015 @ 09:30 AM

Silica gel is a hard, porous form of silicon dioxide that is commonly processed into beads or granules and used as a dessicant, and is inside the permeable paper packets marked "DO NOT EAT" that are found inside many products.  The substance is made from sodium silicate, and its strong affinity for water molecules causes it to adsorb wetness and prevent mold from forming, which spoils many products.  Chemically, silica gel removes water vapor through adsorption of its numerous surface pores rather than by absorption into the gel itself.  Most people may be aware of silica gel to some degree, but not everyone knows how it is made.

Read More

Tags: process equipment, calciners, silica gel, catalysts

Unloading Iron Ore by Rail

Posted by David Phillips on Wed, Feb 04, 2015 @ 09:30 AM

Mining-OperationMan has been mining stone, metals and minerals since prehistoric times.  The world's oldest known mine site is located in Swaziland in Africa, where the first mining of metals was recorded via carbon dating as 43,000 BC.  Mining of metallic minerals occurred in ancient Egypt, Greece and the Roman Empire, and metals such as iron ore contributed to the industrial growth of Europe during the Middle Ages.  Iron is the fourth most abundant mineral in the Earth's crust, at about five percent, and it also represents 95 percent of all metal used in any given year.

Read More

Tags: rotary railcar dumpers, railcar dumper unloaders, wagon tipplers, iron ore

Thermal Processing Equipment Benefits a Gypsum Operation

Posted by David Phillips on Wed, Jan 28, 2015 @ 08:30 AM

Gypsum is a naturally occurring hydrated salt compound of soft calcium sulfate, and its use depends on the industry in which it is used.  It was formed millions of years ago as prehistoric sea beds evaporated, and can be found in large, thick beds or smaller, thinner ones.  Today, gypsum is typically mined in open pit quarries and processed similar to other such operations.  Through thermal processing, or pyro processing, it is broken down and refined into more recognizeable forms.  It is something that most people probably have not heard of but almost everyone uses, and on a daily basis.

Read More

Tags: process equipment, calciners, powder processing, powder & bulk solids, gypsum

How a Fluid Bed Dryer Operates

Posted by David Phillips on Wed, Jan 21, 2015 @ 09:30 AM

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.

Read More

Tags: industrial dryers, process equipment, bulk material handling equipment, fluid bed dryers, fluidized bed