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| Dier International |
16 McKay Crescent, Unionville,
Ontario, Canada,
L3R 3M6 |
Call: (416) 219-0509
Email: dierint@aol.com |
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| Green technologies |
Dier International is committed to providing environmentally conscious, cost-effective technologies that maximize our customers efficiencies. “Going Green” will benefit those who tackle it head on by maximizing their performance while creating operational savings.
The simplest way to begin this is by making an 'energy efficiency assessment' part of the capital expenditure approval process. The days of the “apples to apples” purchasing scenario when comparing new equipment and choosing the lowest price, has long passed us by. Each technology must be considered on its own merit and must be judged not on the initial cost, but on the cost to own the equipment over its life span. This will permanently improve a company’s overall technology and energy efficiency which in turn reduces its energy costs. |
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| Technologies available to reduce energy consumption |
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| CloseD Loop Dry Fluid Coolers |
 A reliable and consistent source of cooling water is essential for fast and repeatable plastics processing. Traditional process cooling technologies using evaporative cooling towers and chillers account for a large percentage of all the energy consumed in the plant. There is now proven technology which can significantly reduce both energy and water consumption. Low ambient temperatures in Canada, and the temperatures used in plastics processing mean that use of Closed loop dry coolers can reduce energy costs by up to 95%. This is accomplished with energy efficient fans, pumps and free cooling opportunities. The cost savings generated by using closed loop dry coolers give a typical payback period on the investment of less than 2 years and often as little as 12 months.
Frigel’s Ecodry Gel closed loop dry fluid coolers represent the most efficient, clean, safe and affordable solution to deal with any process requiring water cooling. The system operates in a clean closed circuit with no evaporation of process water.
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| drying |
 Drying is a hidden cost and new technologies offer improved energy performance and reduced cost.The latest dryers operate in a central area and use integral heat exchangers to recover heat from the exhaust air and recycle this back to pre-heat the cooler dried air from the desiccant dryer. This process can improve the heat balance such that up to 56% of the input energy is used to actually dry the polymer. This almost doubles the efficiency of the system and significantly reduces energy use and costs. Motan’s statement of “making our customers become more competitive by making them more efficient” embodies this by reducing drying costs and improving drying performance.
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| LUXOR DRYING WITH ETA-PROCESS TECHNOLOGY |
 Drying
A clearly determined residual moisture of the material guarantees minimal production of scrap.
The first step towards high quality products thus means drying of plastic granules even before processing.
For the correct drying of plastics an extremely low dew point of the dry air flow is required. The dry air also has to be hot enough to cause the moisture to be released by the material.
The air is first dehumidified by being passed through a molecular sieve and afterwards heated up to a material specific drying temperature. This hot dehumidified air is now passed through the material to remove the water molecules, and then back to the molecular sieve again in a continuous process. After the recommended drying time has elapsed the material can be processed without problems.
 Drying Organizer
Drying for too long at high temperatures may lead to thermal degradation with some plastics.
The DryingOrganizer prevents this in lowering the temperature related to the material throughput.
In case of production interruption, the system lowers the actual temperature to the standby level.
This saves energy and keeps the material dry. Sensing the material throughput and monitoring too high levels,
is an additional advantage.
Motan's ETA-process*
Energy efficiency has always been a primary concern in the design of Motan central drying stations. A closed-loop cooling not only saves energy, it will also avoid the regaining of moisture by the molecular sieve during the regeneration phase. With the ETA-process* you regain energy from the return air directly at the bin via an integrated heat exchanger (optional). A thermal barrier in the drying bin prevents energy loss via the hopper loader.
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| electric injection moulding machines |
 Electric injection moulding machines can bring significant energy and cost benefits. Energy
savings of 30% are typical, but can rise to 60% if cycle time reductions are considered. All-electric machines use less water; depending on the product, water consumption can be reduced by up to 65%. Improved cycle times and increased precision gives improved productivity, while the reduced need for production capacity can lead to significant cost reductions overall. Arburg stands right at the forefront when it comes to energy effieciency in their manufacturing process and in their injection moulding machines. “The clear aim is to foster all-round co-operation with our customers in order to promote energy-efficient production systems”.
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