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Which Type of Industrial Dryer Best Fits your Needs?

When it comes to drying large amounts of raw material, there are a number of options for manufacturers to choose from, depending on their budget, space and properties of the material being dried. Industrial dryers are often used to remove moisture from materials such as powders, foods and chemicals for the pharmaceutical, paper, pollution control, food and agricultural industries. If your company is in the market for a new industrial dryer, there are 5 main types for different applications, each with its own advantages and disadvantages. Dryers that pass material through a large, revolving metal drum and heated by gas, liquid or solid fuel are commonly used in the chemical, food and mineral industries. Rotary dryers have low maintenance costs and allow vast amounts of material with differing particle sizes to dry at one time. However, because these dryers are powered by gas, moisture control is difficult and they often create fire hazards as a result of drying flammable materials. Because the drum is often quite large, these dryers often require a lot of space.

A Primer on Dense Phase Pneumatic Conveying Systems

Dynamic Air Inc., a major leader in the dense phase pneumatic conveying industry, is a specialist in the pneumatic conveying of dry, bulk solids. Applications range from food to poison, from light fumed silica to heavy powdered metals. However, all of these applications have one thing in common, the necessity to control the conveying velocity in order to control particle degradation, conveying pipe wear, minimize air consumption, or eliminate pipe line plugging. What is Pneumatic Conveying? Pneumatic conveying is nothing more than creating a pressure differential along a pipeline and moving a bulk material along with the air as the air moves towards the area of lower pressure. This can be done with a vacuum inducer, or with compressed air being injected into one end of or along the pipeline. Dilute Phase vs. Dense Phase Pneumatic Conveying The two most distinct categories of pneumatic conveying can be described as either low pressure (dilute phase) or high pressure (dense phase) systems.

New Starch-Based Polymers Make Blow Molded Bio-Plastic Possible

This last April, British environmentalist and adventurer David de Rothschild set sail in a catamaran he had constructed entirely from recycled PET bottles. As a statement to the growing global problem of ocean pollution and the need for higher recycling standards, de Rothschild planned to sail to what Planet Green Bottle calls ‘Plastic Soup’, a floating mass of plastic waste nearly the size of Texas suspended in the middle of the Pacific Ocean. This British adventure-seeker may have found the most creative way yet to call attention to this pending environmental risk, but plastic engineers and manufacturers have been working towards a solution in more conventional ways for many years. Polyethylene terephthalate, or ‘PET’, is a petroleum-based resin and may be broken down and recycled almost indefinitely. The addition of dies, fiberglass and other composite materials reduce PET’s recyclability, but the majority of PET materials, such as the beverage bottles out of which Mr. de Rothschild constructed his boat, are recycled at a cost relative or lower than that of purchasing virgin materials. Still, many water bottles, soda bottles and other beverage containers never make it to the recycling bin, ending up in landfills, or worse: the Pacific’s Plastic Soup.

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