Feed & Additive Magazine Issue 4 May 2021

ISSUE FOCUS 54 FEED & ADDITIVE MAGAZINE May 2021 ing. Steel coils are preheated to 600 – 650ºC and heated to 750 – 850 ºC getting dry in a protective atmosphere (N2, H2). Hereafter coils are immersed in a bath of zinc* to 450-500 ºC, being dried in an air flow to adjust the thickness. Hot dip galvanization by immersion in a bath of zinc is normally used with pieces which don’t accept the continuous process, as welding components or superior thickness. The process is more of an artisan approach, and doesn’t guarantee thickness homoge- neity in components. SILO DESIGN AND CALCULATIONS The versatility of our silos makes them available for different industries such as breweries, animal feed, port facilities, our mills, ethanol, drying, our mills, and storage of raw materials for the plastic industry and biofuels. The growing product line allows us to offer a stor- age system that fully meets the needs of our cus- tomers by offering silos from 5 m³ to 25,000 m³ capacity. In order to do the design and calculations of the silo it is necessary to know the type of grain, use and location. Out technical team designs silos considering all in- ternal and external elements that affect it soundness. The internal are: grain load, angle of repose, specific weight, internal friction, specific weight excluding grain and security coefficient. Our technical depart- ment calculates our silos with a density calculation of ρ = 834 kg/m3* and our security coefficient cal- culations is over regulations. Under requirement, we calculate in any other code (Eurocode, NPF, Gost, etc). Also, the external factors play a big role - seis- mic coefficients, wind loads reinforces and snow will require certain modifications to make your facility a safe working space. The silo is a central part for safe and caring grain storage, but it needs an operation and general main- tenance that starts from the first load of grain. You must check temperature and moisture content of the cereal being loaded into the silo and check the tem- perature of the stored crop at regular intervals & aer- ate as necessary. You should follow strictly the first filling procedures (especially center load). And after discharging the silo completely and after isolating the sweep auger, clean the inside of the silo thoroughly, including under the aeration grids to minimize the risk of infestation. Projects delivered in over 145 countries, 42 million m³ built, 10,000 projects, 35 years of experience, the integration of our silos in the biggest storage projects; these facts consolidate Symaga as a major reliable man- ufacturer in the industrial silo sector. Tailored techni- cal support to each project and state–of-the-art facili- ties make Symaga your best partner for storage. About Alfonso Garrido Parejo Experienced Logistics Manager and Sales Director with expertise leading successful Business Development around the world. Pas- sionate about the acquisition of new business partners and clients. He is an economist with more than ten years of international experience in business and international development. Currently he is am working as a CEO at Symaga Silos, European Leader and worldwide recognized company in the grain and storage sector.