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Save to read list Published by Louise Mulhall , Editorial Assistant World Fertilizer, Friday, 20 January 2017 10:15
The system has been supplied to Cargill in Wahpeton, North Dakota, US, in the company's grain processing plant.
>As an addition to their long-established range of standard design DSH Dust Suppression hoppers, The PFC system allows for a single DSH hopper unit to be used with either a variety of different products, the same product with a large variation in Bulk Density, or a combination of both.
For this project the system allows for the selection of two different products and four different Density settings for each product. However, a system can be supplied to suit each customer’s specific project’s needs.
The PFC system consists of a Steel DSH Dust Suppression Hopper (Stainless, Corten or Hardox options) installed resting on a Loadcell within a specialised frame design. The Loadcell is then connected to a DSH supplied PLC control system. Also connected to the PLC is a motor (ATEX specification if required) and screw-jack unit. The DSH Hopper Plug is attached to the screw-jack.
In operation, the PLC continuously monitors the weight signal coming from the loadcell. From this it controls the position of the hopper plug by instructing the screw-jack to action up or down accordingly. During calibration, the PLC is trained to look for a known optimum operating weight based on Product and Bulk Density
The PLC system in this instance is controlled by a variety of selector/push-button switches. The operator can simply select which product is being loaded and the applicable Bulk density, whether normal/high/low. Many of our customers find that the Bulk Density of a particular product varies based on humidity/Temperature and what stage of the loading process they are in (top/bottom of silo, beginning or end of ship unloading)
The PLC also comes with a variety of self-test, safety over-rides and reset controls.
The PFC system can be supplied with any size from the DSH range of hoppers.
Whilst the standard DSH Dust Suppression System meets the needs of the large majority of their global customers, the addition of the latest PFC system allows for even greater flexibility whilst loading and further adds to the DSH Company vision of eliminating all dust during bilk loadout, thus saving workers health, companies money and the world environment.
The loadcell and mounting frame.
For more information please contact: www.dshsystems.com
Read the article online at: https://www.worldfertilizer.com/product-news/20012017/computerised-discharge-dsh-hopper-in-us-grain-plant/
The company will offer over 750 commodity price benchmarks from 21 price services, covering metals, fertilizers and their raw materials, through Refinitiv Eikon, a specialist data provider to more than 40 000 end users across 190 countries.
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